31717880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 75924000

約数和(自身を除く): 44206120

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 232, 290, 296, 370, 580, 739, 740, 1073, 1160, 1478, 1480, 2146, 2956, 3695, 4292, 5365, 5912, 7390, 8584, 10730, 14780, 21431, 21460, 27343, 29560, 42862, 42920, 54686, 85724, 107155, 109372, 136715, 171448, 214310, 218744, 273430, 428620, 546860, 792947, 857240, 1093720, 1585894, 3171788, 3964735, 6343576, 7929470, 15858940, 31717880]

約数ペア:

[(1, 31717880), (2, 15858940), (4, 7929470), (5, 6343576), (8, 3964735), (10, 3171788), (20, 1585894), (29, 1093720), (37, 857240), (40, 792947), (58, 546860), (74, 428620), (116, 273430), (145, 218744), (148, 214310), (185, 171448), (232, 136715), (290, 109372), (296, 107155), (370, 85724), (580, 54686), (739, 42920), (740, 42862), (1073, 29560), (1160, 27343), (1478, 21460), (1480, 21431), (2146, 14780), (2956, 10730), (3695, 8584), (4292, 7390), (5365, 5912)]