814840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1567}}^1$

素因数の和:1591

約数の個数: 32

約数和(自身を含む): 1975680

約数和(自身を除く): 1160840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1567, 3134, 6268, 7835, 12536, 15670, 20371, 31340, 40742, 62680, 81484, 101855, 162968, 203710, 407420, 814840]

約数ペア:

[(1, 814840), (2, 407420), (4, 203710), (5, 162968), (8, 101855), (10, 81484), (13, 62680), (20, 40742), (26, 31340), (40, 20371), (52, 15670), (65, 12536), (104, 7835), (130, 6268), (260, 3134), (520, 1567)]