15000880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 37497600

約数和(自身を除く): 22496720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 139, 142, 152, 190, 278, 284, 304, 355, 380, 556, 568, 695, 710, 760, 1112, 1136, 1349, 1390, 1420, 1520, 2224, 2641, 2698, 2780, 2840, 5282, 5396, 5560, 5680, 6745, 9869, 10564, 10792, 11120, 13205, 13490, 19738, 21128, 21584, 26410, 26980, 39476, 42256, 49345, 52820, 53960, 78952, 98690, 105640, 107920, 157904, 187511, 197380, 211280, 375022, 394760, 750044, 789520, 937555, 1500088, 1875110, 3000176, 3750220, 7500440, 15000880]

約数ペア:

[(1, 15000880), (2, 7500440), (4, 3750220), (5, 3000176), (8, 1875110), (10, 1500088), (16, 937555), (19, 789520), (20, 750044), (38, 394760), (40, 375022), (71, 211280), (76, 197380), (80, 187511), (95, 157904), (139, 107920), (142, 105640), (152, 98690), (190, 78952), (278, 53960), (284, 52820), (304, 49345), (355, 42256), (380, 39476), (556, 26980), (568, 26410), (695, 21584), (710, 21128), (760, 19738), (1112, 13490), (1136, 13205), (1349, 11120), (1390, 10792), (1420, 10564), (1520, 9869), (2224, 6745), (2641, 5680), (2698, 5560), (2780, 5396), (2840, 5282)]