64813360

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9103}}^1$

素因数の和:9205

約数の個数: 40

約数和(自身を含む): 152400960

約数和(自身を除く): 87587600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 9103, 18206, 36412, 45515, 72824, 91030, 145648, 182060, 364120, 728240, 810167, 1620334, 3240668, 4050835, 6481336, 8101670, 12962672, 16203340, 32406680, 64813360]

約数ペア:

[(1, 64813360), (2, 32406680), (4, 16203340), (5, 12962672), (8, 8101670), (10, 6481336), (16, 4050835), (20, 3240668), (40, 1620334), (80, 810167), (89, 728240), (178, 364120), (356, 182060), (445, 145648), (712, 91030), (890, 72824), (1424, 45515), (1780, 36412), (3560, 18206), (7120, 9103)]