1388920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2671}}^1$

素因数の和:2695

約数の個数: 32

約数和(自身を含む): 3366720

約数和(自身を除く): 1977800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2671, 5342, 10684, 13355, 21368, 26710, 34723, 53420, 69446, 106840, 138892, 173615, 277784, 347230, 694460, 1388920]

約数ペア:

[(1, 1388920), (2, 694460), (4, 347230), (5, 277784), (8, 173615), (10, 138892), (13, 106840), (20, 69446), (26, 53420), (40, 34723), (52, 26710), (65, 21368), (104, 13355), (130, 10684), (260, 5342), (520, 2671)]