221665128

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{1187}}^1$

素因数の和:1478

約数の個数: 64

約数和(自身を含む): 574801920

約数和(自身を除く): 353136792

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 251, 372, 502, 744, 753, 1004, 1187, 1506, 2008, 2374, 3012, 3561, 4748, 6024, 7122, 7781, 9496, 14244, 15562, 23343, 28488, 31124, 36797, 46686, 62248, 73594, 93372, 110391, 147188, 186744, 220782, 294376, 297937, 441564, 595874, 883128, 893811, 1191748, 1787622, 2383496, 3575244, 7150488, 9236047, 18472094, 27708141, 36944188, 55416282, 73888376, 110832564, 221665128]

約数ペア:

[(1, 221665128), (2, 110832564), (3, 73888376), (4, 55416282), (6, 36944188), (8, 27708141), (12, 18472094), (24, 9236047), (31, 7150488), (62, 3575244), (93, 2383496), (124, 1787622), (186, 1191748), (248, 893811), (251, 883128), (372, 595874), (502, 441564), (744, 297937), (753, 294376), (1004, 220782), (1187, 186744), (1506, 147188), (2008, 110391), (2374, 93372), (3012, 73594), (3561, 62248), (4748, 46686), (6024, 36797), (7122, 31124), (7781, 28488), (9496, 23343), (14244, 15562)]