7500440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 18144000

約数和(自身を除く): 10643560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 139, 142, 152, 190, 278, 284, 355, 380, 556, 568, 695, 710, 760, 1112, 1349, 1390, 1420, 2641, 2698, 2780, 2840, 5282, 5396, 5560, 6745, 9869, 10564, 10792, 13205, 13490, 19738, 21128, 26410, 26980, 39476, 49345, 52820, 53960, 78952, 98690, 105640, 187511, 197380, 375022, 394760, 750044, 937555, 1500088, 1875110, 3750220, 7500440]

約数ペア:

[(1, 7500440), (2, 3750220), (4, 1875110), (5, 1500088), (8, 937555), (10, 750044), (19, 394760), (20, 375022), (38, 197380), (40, 187511), (71, 105640), (76, 98690), (95, 78952), (139, 53960), (142, 52820), (152, 49345), (190, 39476), (278, 26980), (284, 26410), (355, 21128), (380, 19738), (556, 13490), (568, 13205), (695, 10792), (710, 10564), (760, 9869), (1112, 6745), (1349, 5560), (1390, 5396), (1420, 5282), (2641, 2840), (2698, 2780)]