7821740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 17200512

約数和(自身を除く): 9378772

約数列:

[1, 2, 4, 5, 10, 20, 47, 53, 94, 106, 157, 188, 212, 235, 265, 314, 470, 530, 628, 785, 940, 1060, 1570, 2491, 3140, 4982, 7379, 8321, 9964, 12455, 14758, 16642, 24910, 29516, 33284, 36895, 41605, 49820, 73790, 83210, 147580, 166420, 391087, 782174, 1564348, 1955435, 3910870, 7821740]

約数ペア:

[(1, 7821740), (2, 3910870), (4, 1955435), (5, 1564348), (10, 782174), (20, 391087), (47, 166420), (53, 147580), (94, 83210), (106, 73790), (157, 49820), (188, 41605), (212, 36895), (235, 33284), (265, 29516), (314, 24910), (470, 16642), (530, 14758), (628, 12455), (785, 9964), (940, 8321), (1060, 7379), (1570, 4982), (2491, 3140)]