80143380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6271}}^1$

素因数の和:6357

約数の個数: 72

約数和(自身を含む): 246564864

約数和(自身を除く): 166421484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6271, 6390, 12542, 12780, 18813, 25084, 31355, 37626, 56439, 62710, 75252, 94065, 112878, 125420, 188130, 225756, 282195, 376260, 445241, 564390, 890482, 1128780, 1335723, 1780964, 2226205, 2671446, 4007169, 4452410, 5342892, 6678615, 8014338, 8904820, 13357230, 16028676, 20035845, 26714460, 40071690, 80143380]

約数ペア:

[(1, 80143380), (2, 40071690), (3, 26714460), (4, 20035845), (5, 16028676), (6, 13357230), (9, 8904820), (10, 8014338), (12, 6678615), (15, 5342892), (18, 4452410), (20, 4007169), (30, 2671446), (36, 2226205), (45, 1780964), (60, 1335723), (71, 1128780), (90, 890482), (142, 564390), (180, 445241), (213, 376260), (284, 282195), (355, 225756), (426, 188130), (639, 125420), (710, 112878), (852, 94065), (1065, 75252), (1278, 62710), (1420, 56439), (2130, 37626), (2556, 31355), (3195, 25084), (4260, 18813), (6271, 12780), (6390, 12542)]