315090520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{1009}}^1$

素因数の和:1268

約数の個数: 64

約数和(自身を含む): 732290400

約数和(自身を除く): 417199880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 211, 296, 370, 422, 740, 844, 1009, 1055, 1480, 1688, 2018, 2110, 4036, 4220, 5045, 7807, 8072, 8440, 10090, 15614, 20180, 31228, 37333, 39035, 40360, 62456, 74666, 78070, 149332, 156140, 186665, 212899, 298664, 312280, 373330, 425798, 746660, 851596, 1064495, 1493320, 1703192, 2128990, 4257980, 7877263, 8515960, 15754526, 31509052, 39386315, 63018104, 78772630, 157545260, 315090520]

約数ペア:

[(1, 315090520), (2, 157545260), (4, 78772630), (5, 63018104), (8, 39386315), (10, 31509052), (20, 15754526), (37, 8515960), (40, 7877263), (74, 4257980), (148, 2128990), (185, 1703192), (211, 1493320), (296, 1064495), (370, 851596), (422, 746660), (740, 425798), (844, 373330), (1009, 312280), (1055, 298664), (1480, 212899), (1688, 186665), (2018, 156140), (2110, 149332), (4036, 78070), (4220, 74666), (5045, 62456), (7807, 40360), (8072, 39035), (8440, 37333), (10090, 31228), (15614, 20180)]