90981460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{613}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 197123472

約数和(自身を除く): 106142012

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 181, 205, 362, 410, 613, 724, 820, 905, 1226, 1810, 2452, 3065, 3620, 6130, 7421, 12260, 14842, 25133, 29684, 37105, 50266, 74210, 100532, 110953, 125665, 148420, 221906, 251330, 443812, 502660, 554765, 1109530, 2219060, 4549073, 9098146, 18196292, 22745365, 45490730, 90981460]

約数ペア:

[(1, 90981460), (2, 45490730), (4, 22745365), (5, 18196292), (10, 9098146), (20, 4549073), (41, 2219060), (82, 1109530), (164, 554765), (181, 502660), (205, 443812), (362, 251330), (410, 221906), (613, 148420), (724, 125665), (820, 110953), (905, 100532), (1226, 74210), (1810, 50266), (2452, 37105), (3065, 29684), (3620, 25133), (6130, 14842), (7421, 12260)]