81084380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1723}}^1$

素因数の和:1926

約数の個数: 48

約数和(自身を含む): 184495584

約数和(自身を除く): 103411204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 724, 905, 1723, 1810, 2353, 3446, 3620, 4706, 6892, 8615, 9412, 11765, 17230, 22399, 23530, 34460, 44798, 47060, 89596, 111995, 223990, 311863, 447980, 623726, 1247452, 1559315, 3118630, 4054219, 6237260, 8108438, 16216876, 20271095, 40542190, 81084380]

約数ペア:

[(1, 81084380), (2, 40542190), (4, 20271095), (5, 16216876), (10, 8108438), (13, 6237260), (20, 4054219), (26, 3118630), (52, 1559315), (65, 1247452), (130, 623726), (181, 447980), (260, 311863), (362, 223990), (724, 111995), (905, 89596), (1723, 47060), (1810, 44798), (2353, 34460), (3446, 23530), (3620, 22399), (4706, 17230), (6892, 11765), (8615, 9412)]