2157380

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{401}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 4558680

約数和(自身を除く): 2401300

約数列:

[1, 2, 4, 5, 10, 20, 269, 401, 538, 802, 1076, 1345, 1604, 2005, 2690, 4010, 5380, 8020, 107869, 215738, 431476, 539345, 1078690, 2157380]

約数ペア:

[(1, 2157380), (2, 1078690), (4, 539345), (5, 431476), (10, 215738), (20, 107869), (269, 8020), (401, 5380), (538, 4010), (802, 2690), (1076, 2005), (1345, 1604)]