1640028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{10513}}^1$

素因数の和:10533

約数の個数: 24

約数和(自身を含む): 4121488

約数和(自身を除く): 2481460

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 10513, 21026, 31539, 42052, 63078, 126156, 136669, 273338, 410007, 546676, 820014, 1640028]

約数ペア:

[(1, 1640028), (2, 820014), (3, 546676), (4, 410007), (6, 273338), (12, 136669), (13, 126156), (26, 63078), (39, 42052), (52, 31539), (78, 21026), (156, 10513)]