403967980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1553723}}^1$

素因数の和:1553745

約数の個数: 24

約数和(自身を含む): 913589712

約数和(自身を除く): 509621732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1553723, 3107446, 6214892, 7768615, 15537230, 20198399, 31074460, 40396798, 80793596, 100991995, 201983990, 403967980]

約数ペア:

[(1, 403967980), (2, 201983990), (4, 100991995), (5, 80793596), (10, 40396798), (13, 31074460), (20, 20198399), (26, 15537230), (52, 7768615), (65, 6214892), (130, 3107446), (260, 1553723)]