991754480

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{17387}}^1$

素因数の和:17454

約数の個数: 80

約数和(自身を含む): 2483841024

約数和(自身を除く): 1492086544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 155, 184, 230, 248, 310, 368, 460, 496, 620, 713, 920, 1240, 1426, 1840, 2480, 2852, 3565, 5704, 7130, 11408, 14260, 17387, 28520, 34774, 57040, 69548, 86935, 139096, 173870, 278192, 347740, 399901, 538997, 695480, 799802, 1077994, 1390960, 1599604, 1999505, 2155988, 2694985, 3199208, 3999010, 4311976, 5389970, 6398416, 7998020, 8623952, 10779940, 12396931, 15996040, 21559880, 24793862, 31992080, 43119760, 49587724, 61984655, 99175448, 123969310, 198350896, 247938620, 495877240, 991754480]

約数ペア:

[(1, 991754480), (2, 495877240), (4, 247938620), (5, 198350896), (8, 123969310), (10, 99175448), (16, 61984655), (20, 49587724), (23, 43119760), (31, 31992080), (40, 24793862), (46, 21559880), (62, 15996040), (80, 12396931), (92, 10779940), (115, 8623952), (124, 7998020), (155, 6398416), (184, 5389970), (230, 4311976), (248, 3999010), (310, 3199208), (368, 2694985), (460, 2155988), (496, 1999505), (620, 1599604), (713, 1390960), (920, 1077994), (1240, 799802), (1426, 695480), (1840, 538997), (2480, 399901), (2852, 347740), (3565, 278192), (5704, 173870), (7130, 139096), (11408, 86935), (14260, 69548), (17387, 57040), (28520, 34774)]