20303856

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 120

約数和(自身を含む): 61610640

約数和(自身を除く): 41306784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 41, 48, 57, 72, 76, 82, 114, 123, 144, 152, 164, 171, 181, 228, 246, 304, 328, 342, 362, 369, 456, 492, 543, 656, 684, 724, 738, 779, 912, 984, 1086, 1368, 1448, 1476, 1558, 1629, 1968, 2172, 2337, 2736, 2896, 2952, 3116, 3258, 3439, 4344, 4674, 5904, 6232, 6516, 6878, 7011, 7421, 8688, 9348, 10317, 12464, 13032, 13756, 14022, 14842, 18696, 20634, 22263, 26064, 27512, 28044, 29684, 30951, 37392, 41268, 44526, 55024, 56088, 59368, 61902, 66789, 82536, 89052, 112176, 118736, 123804, 133578, 140999, 165072, 178104, 247608, 267156, 281998, 356208, 422997, 495216, 534312, 563996, 845994, 1068624, 1127992, 1268991, 1691988, 2255984, 2537982, 3383976, 5075964, 6767952, 10151928, 20303856]

約数ペア:

[(1, 20303856), (2, 10151928), (3, 6767952), (4, 5075964), (6, 3383976), (8, 2537982), (9, 2255984), (12, 1691988), (16, 1268991), (18, 1127992), (19, 1068624), (24, 845994), (36, 563996), (38, 534312), (41, 495216), (48, 422997), (57, 356208), (72, 281998), (76, 267156), (82, 247608), (114, 178104), (123, 165072), (144, 140999), (152, 133578), (164, 123804), (171, 118736), (181, 112176), (228, 89052), (246, 82536), (304, 66789), (328, 61902), (342, 59368), (362, 56088), (369, 55024), (456, 44526), (492, 41268), (543, 37392), (656, 30951), (684, 29684), (724, 28044), (738, 27512), (779, 26064), (912, 22263), (984, 20634), (1086, 18696), (1368, 14842), (1448, 14022), (1476, 13756), (1558, 13032), (1629, 12464), (1968, 10317), (2172, 9348), (2337, 8688), (2736, 7421), (2896, 7011), (2952, 6878), (3116, 6516), (3258, 6232), (3439, 5904), (4344, 4674)]