131191480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7681}}^1$

素因数の和:7760

約数の個数: 64

約数和(自身を含む): 342924480

約数和(自身を除く): 211733000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2440, 3416, 4270, 7681, 8540, 15362, 17080, 30724, 38405, 53767, 61448, 76810, 107534, 153620, 215068, 268835, 307240, 430136, 468541, 537670, 937082, 1075340, 1874164, 2150680, 2342705, 3279787, 3748328, 4685410, 6559574, 9370820, 13119148, 16398935, 18741640, 26238296, 32797870, 65595740, 131191480]

約数ペア:

[(1, 131191480), (2, 65595740), (4, 32797870), (5, 26238296), (7, 18741640), (8, 16398935), (10, 13119148), (14, 9370820), (20, 6559574), (28, 4685410), (35, 3748328), (40, 3279787), (56, 2342705), (61, 2150680), (70, 1874164), (122, 1075340), (140, 937082), (244, 537670), (280, 468541), (305, 430136), (427, 307240), (488, 268835), (610, 215068), (854, 153620), (1220, 107534), (1708, 76810), (2135, 61448), (2440, 53767), (3416, 38405), (4270, 30724), (7681, 17080), (8540, 15362)]