13690840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 32497920

約数和(自身を除く): 18807080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 181, 244, 248, 305, 310, 362, 488, 610, 620, 724, 905, 1220, 1240, 1448, 1810, 1891, 2440, 3620, 3782, 5611, 7240, 7564, 9455, 11041, 11222, 15128, 18910, 22082, 22444, 28055, 37820, 44164, 44888, 55205, 56110, 75640, 88328, 110410, 112220, 220820, 224440, 342271, 441640, 684542, 1369084, 1711355, 2738168, 3422710, 6845420, 13690840]

約数ペア:

[(1, 13690840), (2, 6845420), (4, 3422710), (5, 2738168), (8, 1711355), (10, 1369084), (20, 684542), (31, 441640), (40, 342271), (61, 224440), (62, 220820), (122, 112220), (124, 110410), (155, 88328), (181, 75640), (244, 56110), (248, 55205), (305, 44888), (310, 44164), (362, 37820), (488, 28055), (610, 22444), (620, 22082), (724, 18910), (905, 15128), (1220, 11222), (1240, 11041), (1448, 9455), (1810, 7564), (1891, 7240), (2440, 5611), (3620, 3782)]