13180400

素因数分解:

$2^4\times 5^2\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:498

約数の個数: 60

約数和(自身を含む): 32128152

約数和(自身を除く): 18947752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 83, 100, 166, 200, 332, 397, 400, 415, 664, 794, 830, 1328, 1588, 1660, 1985, 2075, 3176, 3320, 3970, 4150, 6352, 6640, 7940, 8300, 9925, 15880, 16600, 19850, 31760, 32951, 33200, 39700, 65902, 79400, 131804, 158800, 164755, 263608, 329510, 527216, 659020, 823775, 1318040, 1647550, 2636080, 3295100, 6590200, 13180400]

約数ペア:

[(1, 13180400), (2, 6590200), (4, 3295100), (5, 2636080), (8, 1647550), (10, 1318040), (16, 823775), (20, 659020), (25, 527216), (40, 329510), (50, 263608), (80, 164755), (83, 158800), (100, 131804), (166, 79400), (200, 65902), (332, 39700), (397, 33200), (400, 32951), (415, 31760), (664, 19850), (794, 16600), (830, 15880), (1328, 9925), (1588, 8300), (1660, 7940), (1985, 6640), (2075, 6352), (3176, 4150), (3320, 3970)]