81123900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 288

約数和(自身を含む): 289314816

約数和(自身を除く): 208190916

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 25, 26, 30, 31, 33, 39, 44, 50, 52, 55, 60, 61, 62, 65, 66, 75, 78, 93, 100, 110, 122, 124, 130, 132, 143, 150, 155, 156, 165, 183, 186, 195, 220, 244, 260, 275, 286, 300, 305, 310, 325, 330, 341, 366, 372, 390, 403, 429, 465, 550, 572, 610, 620, 650, 660, 671, 682, 715, 732, 775, 780, 793, 806, 825, 858, 915, 930, 975, 1023, 1100, 1209, 1220, 1300, 1342, 1364, 1430, 1525, 1550, 1586, 1612, 1650, 1705, 1716, 1830, 1860, 1891, 1950, 2013, 2015, 2046, 2145, 2325, 2379, 2418, 2684, 2860, 3050, 3100, 3172, 3300, 3355, 3410, 3575, 3660, 3782, 3900, 3965, 4026, 4030, 4092, 4290, 4433, 4575, 4650, 4758, 4836, 5115, 5673, 6045, 6100, 6710, 6820, 7150, 7564, 7930, 8052, 8060, 8525, 8580, 8723, 8866, 9150, 9300, 9455, 9516, 10065, 10075, 10230, 10725, 11346, 11895, 12090, 13299, 13420, 14300, 15860, 16775, 17050, 17446, 17732, 18300, 18910, 19825, 20130, 20150, 20460, 20801, 21450, 22165, 22692, 23790, 24180, 24583, 25575, 26169, 26598, 28365, 30225, 33550, 34100, 34892, 37820, 39650, 40260, 40300, 41602, 42900, 43615, 44330, 47275, 47580, 49166, 50325, 51150, 52338, 53196, 56730, 59475, 60450, 62403, 66495, 67100, 73749, 79300, 83204, 87230, 88660, 94550, 98332, 100650, 102300, 104005, 104676, 110825, 113460, 118950, 120900, 122915, 124806, 130845, 132990, 141825, 147498, 174460, 189100, 201300, 208010, 218075, 221650, 237900, 245830, 249612, 261690, 265980, 270413, 283650, 294996, 312015, 332475, 368745, 416020, 436150, 443300, 491660, 520025, 523380, 540826, 567300, 614575, 624030, 654225, 664950, 737490, 811239, 872300, 1040050, 1081652, 1229150, 1248060, 1308450, 1329900, 1352065, 1474980, 1560075, 1622478, 1843725, 2080100, 2458300, 2616900, 2704130, 3120150, 3244956, 3687450, 4056195, 5408260, 6240300, 6760325, 7374900, 8112390, 13520650, 16224780, 20280975, 27041300, 40561950, 81123900]

約数ペア:

[(1, 81123900), (2, 40561950), (3, 27041300), (4, 20280975), (5, 16224780), (6, 13520650), (10, 8112390), (11, 7374900), (12, 6760325), (13, 6240300), (15, 5408260), (20, 4056195), (22, 3687450), (25, 3244956), (26, 3120150), (30, 2704130), (31, 2616900), (33, 2458300), (39, 2080100), (44, 1843725), (50, 1622478), (52, 1560075), (55, 1474980), (60, 1352065), (61, 1329900), (62, 1308450), (65, 1248060), (66, 1229150), (75, 1081652), (78, 1040050), (93, 872300), (100, 811239), (110, 737490), (122, 664950), (124, 654225), (130, 624030), (132, 614575), (143, 567300), (150, 540826), (155, 523380), (156, 520025), (165, 491660), (183, 443300), (186, 436150), (195, 416020), (220, 368745), (244, 332475), (260, 312015), (275, 294996), (286, 283650), (300, 270413), (305, 265980), (310, 261690), (325, 249612), (330, 245830), (341, 237900), (366, 221650), (372, 218075), (390, 208010), (403, 201300), (429, 189100), (465, 174460), (550, 147498), (572, 141825), (610, 132990), (620, 130845), (650, 124806), (660, 122915), (671, 120900), (682, 118950), (715, 113460), (732, 110825), (775, 104676), (780, 104005), (793, 102300), (806, 100650), (825, 98332), (858, 94550), (915, 88660), (930, 87230), (975, 83204), (1023, 79300), (1100, 73749), (1209, 67100), (1220, 66495), (1300, 62403), (1342, 60450), (1364, 59475), (1430, 56730), (1525, 53196), (1550, 52338), (1586, 51150), (1612, 50325), (1650, 49166), (1705, 47580), (1716, 47275), (1830, 44330), (1860, 43615), (1891, 42900), (1950, 41602), (2013, 40300), (2015, 40260), (2046, 39650), (2145, 37820), (2325, 34892), (2379, 34100), (2418, 33550), (2684, 30225), (2860, 28365), (3050, 26598), (3100, 26169), (3172, 25575), (3300, 24583), (3355, 24180), (3410, 23790), (3575, 22692), (3660, 22165), (3782, 21450), (3900, 20801), (3965, 20460), (4026, 20150), (4030, 20130), (4092, 19825), (4290, 18910), (4433, 18300), (4575, 17732), (4650, 17446), (4758, 17050), (4836, 16775), (5115, 15860), (5673, 14300), (6045, 13420), (6100, 13299), (6710, 12090), (6820, 11895), (7150, 11346), (7564, 10725), (7930, 10230), (8052, 10075), (8060, 10065), (8525, 9516), (8580, 9455), (8723, 9300), (8866, 9150)]