81613910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{863}}^1$

素因数の和:1077

約数の個数: 48

約数和(自身を含む): 171974016

約数和(自身を除く): 90360106

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 193, 245, 386, 490, 863, 965, 1351, 1726, 1930, 2702, 4315, 6041, 6755, 8630, 9457, 12082, 13510, 18914, 30205, 42287, 47285, 60410, 84574, 94570, 166559, 211435, 333118, 422870, 832795, 1165913, 1665590, 2331826, 5829565, 8161391, 11659130, 16322782, 40806955, 81613910]

約数ペア:

[(1, 81613910), (2, 40806955), (5, 16322782), (7, 11659130), (10, 8161391), (14, 5829565), (35, 2331826), (49, 1665590), (70, 1165913), (98, 832795), (193, 422870), (245, 333118), (386, 211435), (490, 166559), (863, 94570), (965, 84574), (1351, 60410), (1726, 47285), (1930, 42287), (2702, 30205), (4315, 18914), (6041, 13510), (6755, 12082), (8630, 9457)]