651090520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{12211}}^1$

素因数の和:12296

約数の個数: 64

約数和(自身を含む): 1547504640

約数和(自身を除く): 896414120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1720, 2666, 5332, 6665, 10664, 12211, 13330, 24422, 26660, 48844, 53320, 61055, 97688, 122110, 244220, 378541, 488440, 525073, 757082, 1050146, 1514164, 1892705, 2100292, 2625365, 3028328, 3785410, 4200584, 5250730, 7570820, 10501460, 15141640, 16277263, 21002920, 32554526, 65109052, 81386315, 130218104, 162772630, 325545260, 651090520]

約数ペア:

[(1, 651090520), (2, 325545260), (4, 162772630), (5, 130218104), (8, 81386315), (10, 65109052), (20, 32554526), (31, 21002920), (40, 16277263), (43, 15141640), (62, 10501460), (86, 7570820), (124, 5250730), (155, 4200584), (172, 3785410), (215, 3028328), (248, 2625365), (310, 2100292), (344, 1892705), (430, 1514164), (620, 1050146), (860, 757082), (1240, 525073), (1333, 488440), (1720, 378541), (2666, 244220), (5332, 122110), (6665, 97688), (10664, 61055), (12211, 53320), (13330, 48844), (24422, 26660)]