13052840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:242

約数の個数: 64

約数和(自身を含む): 30792960

約数和(自身を除く): 17740120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 53, 94, 106, 131, 188, 212, 235, 262, 265, 376, 424, 470, 524, 530, 655, 940, 1048, 1060, 1310, 1880, 2120, 2491, 2620, 4982, 5240, 6157, 6943, 9964, 12314, 12455, 13886, 19928, 24628, 24910, 27772, 30785, 34715, 49256, 49820, 55544, 61570, 69430, 99640, 123140, 138860, 246280, 277720, 326321, 652642, 1305284, 1631605, 2610568, 3263210, 6526420, 13052840]

約数ペア:

[(1, 13052840), (2, 6526420), (4, 3263210), (5, 2610568), (8, 1631605), (10, 1305284), (20, 652642), (40, 326321), (47, 277720), (53, 246280), (94, 138860), (106, 123140), (131, 99640), (188, 69430), (212, 61570), (235, 55544), (262, 49820), (265, 49256), (376, 34715), (424, 30785), (470, 27772), (524, 24910), (530, 24628), (655, 19928), (940, 13886), (1048, 12455), (1060, 12314), (1310, 9964), (1880, 6943), (2120, 6157), (2491, 5240), (2620, 4982)]