31237490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1249}}^1$

素因数の和:1358

約数の個数: 32

約数和(自身を含む): 58590000

約数和(自身を除く): 27352510

約数列:

[1, 2, 5, 10, 41, 61, 82, 122, 205, 305, 410, 610, 1249, 2498, 2501, 5002, 6245, 12490, 12505, 25010, 51209, 76189, 102418, 152378, 256045, 380945, 512090, 761890, 3123749, 6247498, 15618745, 31237490]

約数ペア:

[(1, 31237490), (2, 15618745), (5, 6247498), (10, 3123749), (41, 761890), (61, 512090), (82, 380945), (122, 256045), (205, 152378), (305, 102418), (410, 76189), (610, 51209), (1249, 25010), (2498, 12505), (2501, 12490), (5002, 6245)]