68979040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2551}}^1$

素因数の和:2592

約数の個数: 72

約数和(自身を含む): 176532048

約数和(自身を除く): 107553008

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2551, 2704, 3380, 5102, 5408, 6760, 10204, 12755, 13520, 20408, 25510, 27040, 33163, 40816, 51020, 66326, 81632, 102040, 132652, 165815, 204080, 265304, 331630, 408160, 431119, 530608, 663260, 862238, 1061216, 1326520, 1724476, 2155595, 2653040, 3448952, 4311190, 5306080, 6897904, 8622380, 13795808, 17244760, 34489520, 68979040]

約数ペア:

[(1, 68979040), (2, 34489520), (4, 17244760), (5, 13795808), (8, 8622380), (10, 6897904), (13, 5306080), (16, 4311190), (20, 3448952), (26, 2653040), (32, 2155595), (40, 1724476), (52, 1326520), (65, 1061216), (80, 862238), (104, 663260), (130, 530608), (160, 431119), (169, 408160), (208, 331630), (260, 265304), (338, 204080), (416, 165815), (520, 132652), (676, 102040), (845, 81632), (1040, 66326), (1352, 51020), (1690, 40816), (2080, 33163), (2551, 27040), (2704, 25510), (3380, 20408), (5102, 13520), (5408, 12755), (6760, 10204)]