80395700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 222735744

約数和(自身を除く): 142340044

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 53, 55, 70, 77, 100, 106, 110, 140, 154, 175, 197, 212, 220, 265, 275, 308, 350, 371, 385, 394, 530, 550, 583, 700, 742, 770, 788, 985, 1060, 1100, 1166, 1325, 1379, 1484, 1540, 1855, 1925, 1970, 2167, 2332, 2650, 2758, 2915, 3710, 3850, 3940, 4081, 4334, 4925, 5300, 5516, 5830, 6895, 7420, 7700, 8162, 8668, 9275, 9850, 10441, 10835, 11660, 13790, 14575, 15169, 16324, 18550, 19700, 20405, 20882, 21670, 27580, 29150, 30338, 34475, 37100, 40810, 41764, 43340, 52205, 54175, 58300, 60676, 68950, 73087, 75845, 81620, 102025, 104410, 108350, 114851, 137900, 146174, 151690, 204050, 208820, 216700, 229702, 261025, 292348, 303380, 365435, 379225, 408100, 459404, 522050, 574255, 730870, 758450, 803957, 1044100, 1148510, 1461740, 1516900, 1607914, 1827175, 2297020, 2871275, 3215828, 3654350, 4019785, 5742550, 7308700, 8039570, 11485100, 16079140, 20098925, 40197850, 80395700]

約数ペア:

[(1, 80395700), (2, 40197850), (4, 20098925), (5, 16079140), (7, 11485100), (10, 8039570), (11, 7308700), (14, 5742550), (20, 4019785), (22, 3654350), (25, 3215828), (28, 2871275), (35, 2297020), (44, 1827175), (50, 1607914), (53, 1516900), (55, 1461740), (70, 1148510), (77, 1044100), (100, 803957), (106, 758450), (110, 730870), (140, 574255), (154, 522050), (175, 459404), (197, 408100), (212, 379225), (220, 365435), (265, 303380), (275, 292348), (308, 261025), (350, 229702), (371, 216700), (385, 208820), (394, 204050), (530, 151690), (550, 146174), (583, 137900), (700, 114851), (742, 108350), (770, 104410), (788, 102025), (985, 81620), (1060, 75845), (1100, 73087), (1166, 68950), (1325, 60676), (1379, 58300), (1484, 54175), (1540, 52205), (1855, 43340), (1925, 41764), (1970, 40810), (2167, 37100), (2332, 34475), (2650, 30338), (2758, 29150), (2915, 27580), (3710, 21670), (3850, 20882), (3940, 20405), (4081, 19700), (4334, 18550), (4925, 16324), (5300, 15169), (5516, 14575), (5830, 13790), (6895, 11660), (7420, 10835), (7700, 10441), (8162, 9850), (8668, 9275)]