131221560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7867}}^1$

素因数の和:8020

約数の個数: 64

約数和(自身を含む): 396547200

約数和(自身を除く): 265325640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1390, 1668, 2085, 2780, 3336, 4170, 5560, 7867, 8340, 15734, 16680, 23601, 31468, 39335, 47202, 62936, 78670, 94404, 118005, 157340, 188808, 236010, 314680, 472020, 944040, 1093513, 2187026, 3280539, 4374052, 5467565, 6561078, 8748104, 10935130, 13122156, 16402695, 21870260, 26244312, 32805390, 43740520, 65610780, 131221560]

約数ペア:

[(1, 131221560), (2, 65610780), (3, 43740520), (4, 32805390), (5, 26244312), (6, 21870260), (8, 16402695), (10, 13122156), (12, 10935130), (15, 8748104), (20, 6561078), (24, 5467565), (30, 4374052), (40, 3280539), (60, 2187026), (120, 1093513), (139, 944040), (278, 472020), (417, 314680), (556, 236010), (695, 188808), (834, 157340), (1112, 118005), (1390, 94404), (1668, 78670), (2085, 62936), (2780, 47202), (3336, 39335), (4170, 31468), (5560, 23601), (7867, 16680), (8340, 15734)]