87804910

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 160524000

約数和(自身を除く): 72719090

約数列:

[1, 2, 5, 10, 139, 181, 278, 349, 362, 695, 698, 905, 1390, 1745, 1810, 3490, 25159, 48511, 50318, 63169, 97022, 125795, 126338, 242555, 251590, 315845, 485110, 631690, 8780491, 17560982, 43902455, 87804910]

約数ペア:

[(1, 87804910), (2, 43902455), (5, 17560982), (10, 8780491), (139, 631690), (181, 485110), (278, 315845), (349, 251590), (362, 242555), (695, 126338), (698, 125795), (905, 97022), (1390, 63169), (1745, 50318), (1810, 48511), (3490, 25159)]