140920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 342720

約数和(自身を除く): 201800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 271, 520, 542, 1084, 1355, 2168, 2710, 3523, 5420, 7046, 10840, 14092, 17615, 28184, 35230, 70460, 140920]

約数ペア:

[(1, 140920), (2, 70460), (4, 35230), (5, 28184), (8, 17615), (10, 14092), (13, 10840), (20, 7046), (26, 5420), (40, 3523), (52, 2710), (65, 2168), (104, 1355), (130, 1084), (260, 542), (271, 520)]