28708680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:284

約数の個数: 256

約数和(自身を含む): 116121600

約数和(自身を除く): 87412920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 20, 21, 22, 24, 26, 28, 30, 33, 35, 39, 40, 42, 44, 52, 55, 56, 60, 65, 66, 70, 77, 78, 84, 88, 91, 104, 105, 110, 120, 130, 132, 140, 143, 154, 156, 165, 168, 182, 195, 210, 220, 231, 239, 260, 264, 273, 280, 286, 308, 312, 330, 364, 385, 390, 420, 429, 440, 455, 462, 478, 520, 546, 572, 616, 660, 715, 717, 728, 770, 780, 840, 858, 910, 924, 956, 1001, 1092, 1144, 1155, 1195, 1320, 1365, 1430, 1434, 1540, 1560, 1673, 1716, 1820, 1848, 1912, 2002, 2145, 2184, 2310, 2390, 2629, 2730, 2860, 2868, 3003, 3080, 3107, 3346, 3432, 3585, 3640, 4004, 4290, 4620, 4780, 5005, 5019, 5258, 5460, 5720, 5736, 6006, 6214, 6692, 7170, 7887, 8008, 8365, 8580, 9240, 9321, 9560, 10010, 10038, 10516, 10920, 12012, 12428, 13145, 13384, 14340, 15015, 15535, 15774, 16730, 17160, 18403, 18642, 20020, 20076, 21032, 21749, 24024, 24856, 25095, 26290, 28680, 30030, 31070, 31548, 33460, 34177, 36806, 37284, 39435, 40040, 40152, 43498, 46605, 50190, 52580, 55209, 60060, 62140, 63096, 65247, 66920, 68354, 73612, 74568, 78870, 86996, 92015, 93210, 100380, 102531, 105160, 108745, 110418, 120120, 124280, 130494, 136708, 147224, 157740, 170885, 173992, 184030, 186420, 200760, 205062, 217490, 220836, 239239, 260988, 273416, 276045, 315480, 326235, 341770, 368060, 372840, 410124, 434980, 441672, 478478, 512655, 521976, 552090, 652470, 683540, 717717, 736120, 820248, 869960, 956956, 1025310, 1104180, 1196195, 1304940, 1367080, 1435434, 1913912, 2050620, 2208360, 2392390, 2609880, 2870868, 3588585, 4101240, 4784780, 5741736, 7177170, 9569560, 14354340, 28708680]

約数ペア:

[(1, 28708680), (2, 14354340), (3, 9569560), (4, 7177170), (5, 5741736), (6, 4784780), (7, 4101240), (8, 3588585), (10, 2870868), (11, 2609880), (12, 2392390), (13, 2208360), (14, 2050620), (15, 1913912), (20, 1435434), (21, 1367080), (22, 1304940), (24, 1196195), (26, 1104180), (28, 1025310), (30, 956956), (33, 869960), (35, 820248), (39, 736120), (40, 717717), (42, 683540), (44, 652470), (52, 552090), (55, 521976), (56, 512655), (60, 478478), (65, 441672), (66, 434980), (70, 410124), (77, 372840), (78, 368060), (84, 341770), (88, 326235), (91, 315480), (104, 276045), (105, 273416), (110, 260988), (120, 239239), (130, 220836), (132, 217490), (140, 205062), (143, 200760), (154, 186420), (156, 184030), (165, 173992), (168, 170885), (182, 157740), (195, 147224), (210, 136708), (220, 130494), (231, 124280), (239, 120120), (260, 110418), (264, 108745), (273, 105160), (280, 102531), (286, 100380), (308, 93210), (312, 92015), (330, 86996), (364, 78870), (385, 74568), (390, 73612), (420, 68354), (429, 66920), (440, 65247), (455, 63096), (462, 62140), (478, 60060), (520, 55209), (546, 52580), (572, 50190), (616, 46605), (660, 43498), (715, 40152), (717, 40040), (728, 39435), (770, 37284), (780, 36806), (840, 34177), (858, 33460), (910, 31548), (924, 31070), (956, 30030), (1001, 28680), (1092, 26290), (1144, 25095), (1155, 24856), (1195, 24024), (1320, 21749), (1365, 21032), (1430, 20076), (1434, 20020), (1540, 18642), (1560, 18403), (1673, 17160), (1716, 16730), (1820, 15774), (1848, 15535), (1912, 15015), (2002, 14340), (2145, 13384), (2184, 13145), (2310, 12428), (2390, 12012), (2629, 10920), (2730, 10516), (2860, 10038), (2868, 10010), (3003, 9560), (3080, 9321), (3107, 9240), (3346, 8580), (3432, 8365), (3585, 8008), (3640, 7887), (4004, 7170), (4290, 6692), (4620, 6214), (4780, 6006), (5005, 5736), (5019, 5720), (5258, 5460)]