668157640

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{2713}}^1$

素因数の和:2902

約数の個数: 64

約数和(自身を含む): 1547631360

約数和(自身を除く): 879473720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 131, 188, 235, 262, 376, 470, 524, 655, 940, 1048, 1310, 1880, 2620, 2713, 5240, 5426, 6157, 10852, 12314, 13565, 21704, 24628, 27130, 30785, 49256, 54260, 61570, 108520, 123140, 127511, 246280, 255022, 355403, 510044, 637555, 710806, 1020088, 1275110, 1421612, 1777015, 2550220, 2843224, 3554030, 5100440, 7108060, 14216120, 16703941, 33407882, 66815764, 83519705, 133631528, 167039410, 334078820, 668157640]

約数ペア:

[(1, 668157640), (2, 334078820), (4, 167039410), (5, 133631528), (8, 83519705), (10, 66815764), (20, 33407882), (40, 16703941), (47, 14216120), (94, 7108060), (131, 5100440), (188, 3554030), (235, 2843224), (262, 2550220), (376, 1777015), (470, 1421612), (524, 1275110), (655, 1020088), (940, 710806), (1048, 637555), (1310, 510044), (1880, 355403), (2620, 255022), (2713, 246280), (5240, 127511), (5426, 123140), (6157, 108520), (10852, 61570), (12314, 54260), (13565, 49256), (21704, 30785), (24628, 27130)]