81071100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:481

約数の個数: 216

約数和(自身を含む): 292481280

約数和(自身を除く): 211410180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 25, 30, 33, 36, 38, 44, 45, 50, 55, 57, 60, 66, 75, 76, 90, 95, 99, 100, 110, 114, 132, 150, 165, 171, 180, 190, 198, 209, 220, 225, 228, 275, 285, 300, 330, 342, 380, 396, 418, 431, 450, 475, 495, 550, 570, 627, 660, 684, 825, 836, 855, 862, 900, 950, 990, 1045, 1100, 1140, 1254, 1293, 1425, 1650, 1710, 1724, 1881, 1900, 1980, 2090, 2155, 2475, 2508, 2586, 2850, 3135, 3300, 3420, 3762, 3879, 4180, 4275, 4310, 4741, 4950, 5172, 5225, 5700, 6270, 6465, 7524, 7758, 8189, 8550, 8620, 9405, 9482, 9900, 10450, 10775, 12540, 12930, 14223, 15516, 15675, 16378, 17100, 18810, 18964, 19395, 20900, 21550, 23705, 24567, 25860, 28446, 31350, 32325, 32756, 37620, 38790, 40945, 42669, 43100, 47025, 47410, 49134, 56892, 62700, 64650, 71115, 73701, 77580, 81890, 85338, 90079, 94050, 94820, 96975, 98268, 118525, 122835, 129300, 142230, 147402, 163780, 170676, 180158, 188100, 193950, 204725, 213345, 237050, 245670, 270237, 284460, 294804, 355575, 360316, 368505, 387900, 409450, 426690, 450395, 474100, 491340, 540474, 614175, 711150, 737010, 810711, 818900, 853380, 900790, 1066725, 1080948, 1228350, 1351185, 1422300, 1474020, 1621422, 1801580, 1842525, 2133450, 2251975, 2456700, 2702370, 3242844, 3685050, 4053555, 4266900, 4503950, 5404740, 6755925, 7370100, 8107110, 9007900, 13511850, 16214220, 20267775, 27023700, 40535550, 81071100]

約数ペア:

[(1, 81071100), (2, 40535550), (3, 27023700), (4, 20267775), (5, 16214220), (6, 13511850), (9, 9007900), (10, 8107110), (11, 7370100), (12, 6755925), (15, 5404740), (18, 4503950), (19, 4266900), (20, 4053555), (22, 3685050), (25, 3242844), (30, 2702370), (33, 2456700), (36, 2251975), (38, 2133450), (44, 1842525), (45, 1801580), (50, 1621422), (55, 1474020), (57, 1422300), (60, 1351185), (66, 1228350), (75, 1080948), (76, 1066725), (90, 900790), (95, 853380), (99, 818900), (100, 810711), (110, 737010), (114, 711150), (132, 614175), (150, 540474), (165, 491340), (171, 474100), (180, 450395), (190, 426690), (198, 409450), (209, 387900), (220, 368505), (225, 360316), (228, 355575), (275, 294804), (285, 284460), (300, 270237), (330, 245670), (342, 237050), (380, 213345), (396, 204725), (418, 193950), (431, 188100), (450, 180158), (475, 170676), (495, 163780), (550, 147402), (570, 142230), (627, 129300), (660, 122835), (684, 118525), (825, 98268), (836, 96975), (855, 94820), (862, 94050), (900, 90079), (950, 85338), (990, 81890), (1045, 77580), (1100, 73701), (1140, 71115), (1254, 64650), (1293, 62700), (1425, 56892), (1650, 49134), (1710, 47410), (1724, 47025), (1881, 43100), (1900, 42669), (1980, 40945), (2090, 38790), (2155, 37620), (2475, 32756), (2508, 32325), (2586, 31350), (2850, 28446), (3135, 25860), (3300, 24567), (3420, 23705), (3762, 21550), (3879, 20900), (4180, 19395), (4275, 18964), (4310, 18810), (4741, 17100), (4950, 16378), (5172, 15675), (5225, 15516), (5700, 14223), (6270, 12930), (6465, 12540), (7524, 10775), (7758, 10450), (8189, 9900), (8550, 9482), (8620, 9405)]