31281790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 63037440

約数和(自身を除く): 31755650

約数列:

[1, 2, 5, 10, 19, 31, 38, 47, 62, 94, 95, 113, 155, 190, 226, 235, 310, 470, 565, 589, 893, 1130, 1178, 1457, 1786, 2147, 2914, 2945, 3503, 4294, 4465, 5311, 5890, 7006, 7285, 8930, 10622, 10735, 14570, 17515, 21470, 26555, 27683, 35030, 53110, 55366, 66557, 100909, 133114, 138415, 164641, 201818, 276830, 329282, 332785, 504545, 665570, 823205, 1009090, 1646410, 3128179, 6256358, 15640895, 31281790]

約数ペア:

[(1, 31281790), (2, 15640895), (5, 6256358), (10, 3128179), (19, 1646410), (31, 1009090), (38, 823205), (47, 665570), (62, 504545), (94, 332785), (95, 329282), (113, 276830), (155, 201818), (190, 164641), (226, 138415), (235, 133114), (310, 100909), (470, 66557), (565, 55366), (589, 53110), (893, 35030), (1130, 27683), (1178, 26555), (1457, 21470), (1786, 17515), (2147, 14570), (2914, 10735), (2945, 10622), (3503, 8930), (4294, 7285), (4465, 7006), (5311, 5890)]