78678080

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18913}}^1$

素因数の和:18943

約数の個数: 56

約数和(自身を含む): 201774552

約数和(自身を除く): 123096472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 18913, 37826, 75652, 94565, 151304, 189130, 245869, 302608, 378260, 491738, 605216, 756520, 983476, 1210432, 1229345, 1513040, 1966952, 2458690, 3026080, 3933904, 4917380, 6052160, 7867808, 9834760, 15735616, 19669520, 39339040, 78678080]

約数ペア:

[(1, 78678080), (2, 39339040), (4, 19669520), (5, 15735616), (8, 9834760), (10, 7867808), (13, 6052160), (16, 4917380), (20, 3933904), (26, 3026080), (32, 2458690), (40, 1966952), (52, 1513040), (64, 1229345), (65, 1210432), (80, 983476), (104, 756520), (130, 605216), (160, 491738), (208, 378260), (260, 302608), (320, 245869), (416, 189130), (520, 151304), (832, 94565), (1040, 75652), (2080, 37826), (4160, 18913)]