7242820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 16616880

約数和(自身を除く): 9374060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 313, 356, 445, 626, 890, 1157, 1252, 1565, 1780, 2314, 3130, 4069, 4628, 5785, 6260, 8138, 11570, 16276, 20345, 23140, 27857, 40690, 55714, 81380, 111428, 139285, 278570, 362141, 557140, 724282, 1448564, 1810705, 3621410, 7242820]

約数ペア:

[(1, 7242820), (2, 3621410), (4, 1810705), (5, 1448564), (10, 724282), (13, 557140), (20, 362141), (26, 278570), (52, 139285), (65, 111428), (89, 81380), (130, 55714), (178, 40690), (260, 27857), (313, 23140), (356, 20345), (445, 16276), (626, 11570), (890, 8138), (1157, 6260), (1252, 5785), (1565, 4628), (1780, 4069), (2314, 3130)]