81332880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2999}}^1$

素因数の和:3128

約数の個数: 80

約数和(自身を含む): 254448000

約数和(自身を除く): 173115120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 113, 120, 226, 240, 339, 452, 565, 678, 904, 1130, 1356, 1695, 1808, 2260, 2712, 2999, 3390, 4520, 5424, 5998, 6780, 8997, 9040, 11996, 13560, 14995, 17994, 23992, 27120, 29990, 35988, 44985, 47984, 59980, 71976, 89970, 119960, 143952, 179940, 239920, 338887, 359880, 677774, 719760, 1016661, 1355548, 1694435, 2033322, 2711096, 3388870, 4066644, 5083305, 5422192, 6777740, 8133288, 10166610, 13555480, 16266576, 20333220, 27110960, 40666440, 81332880]

約数ペア:

[(1, 81332880), (2, 40666440), (3, 27110960), (4, 20333220), (5, 16266576), (6, 13555480), (8, 10166610), (10, 8133288), (12, 6777740), (15, 5422192), (16, 5083305), (20, 4066644), (24, 3388870), (30, 2711096), (40, 2033322), (48, 1694435), (60, 1355548), (80, 1016661), (113, 719760), (120, 677774), (226, 359880), (240, 338887), (339, 239920), (452, 179940), (565, 143952), (678, 119960), (904, 89970), (1130, 71976), (1356, 59980), (1695, 47984), (1808, 44985), (2260, 35988), (2712, 29990), (2999, 27120), (3390, 23992), (4520, 17994), (5424, 14995), (5998, 13560), (6780, 11996), (8997, 9040)]