6449980

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{619}}^1$

素因数の和:1149

約数の個数: 24

約数和(自身を含む): 13592880

約数和(自身を除く): 7142900

約数列:

[1, 2, 4, 5, 10, 20, 521, 619, 1042, 1238, 2084, 2476, 2605, 3095, 5210, 6190, 10420, 12380, 322499, 644998, 1289996, 1612495, 3224990, 6449980]

約数ペア:

[(1, 6449980), (2, 3224990), (4, 1612495), (5, 1289996), (10, 644998), (20, 322499), (521, 12380), (619, 10420), (1042, 6190), (1238, 5210), (2084, 3095), (2476, 2605)]