66978520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5563}}^1$

素因数の和:5624

約数の個数: 64

約数和(自身を含む): 176267520

約数和(自身を除く): 109289000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 5563, 6020, 11126, 12040, 22252, 27815, 38941, 44504, 55630, 77882, 111260, 155764, 194705, 222520, 239209, 311528, 389410, 478418, 778820, 956836, 1196045, 1557640, 1674463, 1913672, 2392090, 3348926, 4784180, 6697852, 8372315, 9568360, 13395704, 16744630, 33489260, 66978520]

約数ペア:

[(1, 66978520), (2, 33489260), (4, 16744630), (5, 13395704), (7, 9568360), (8, 8372315), (10, 6697852), (14, 4784180), (20, 3348926), (28, 2392090), (35, 1913672), (40, 1674463), (43, 1557640), (56, 1196045), (70, 956836), (86, 778820), (140, 478418), (172, 389410), (215, 311528), (280, 239209), (301, 222520), (344, 194705), (430, 155764), (602, 111260), (860, 77882), (1204, 55630), (1505, 44504), (1720, 38941), (2408, 27815), (3010, 22252), (5563, 12040), (6020, 11126)]