678080

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:193

約数の個数: 56

約数和(自身を含む): 1749552

約数和(自身を除く): 1071472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 163, 208, 260, 320, 326, 416, 520, 652, 815, 832, 1040, 1304, 1630, 2080, 2119, 2608, 3260, 4160, 4238, 5216, 6520, 8476, 10432, 10595, 13040, 16952, 21190, 26080, 33904, 42380, 52160, 67808, 84760, 135616, 169520, 339040, 678080]

約数ペア:

[(1, 678080), (2, 339040), (4, 169520), (5, 135616), (8, 84760), (10, 67808), (13, 52160), (16, 42380), (20, 33904), (26, 26080), (32, 21190), (40, 16952), (52, 13040), (64, 10595), (65, 10432), (80, 8476), (104, 6520), (130, 5216), (160, 4238), (163, 4160), (208, 3260), (260, 2608), (320, 2119), (326, 2080), (416, 1630), (520, 1304), (652, 1040), (815, 832)]