28847780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{613}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 65707824

約数和(自身を除く): 36860044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 613, 724, 905, 1226, 1810, 2353, 2452, 3065, 3620, 4706, 6130, 7969, 9412, 11765, 12260, 15938, 23530, 31876, 39845, 47060, 79690, 110953, 159380, 221906, 443812, 554765, 1109530, 1442389, 2219060, 2884778, 5769556, 7211945, 14423890, 28847780]

約数ペア:

[(1, 28847780), (2, 14423890), (4, 7211945), (5, 5769556), (10, 2884778), (13, 2219060), (20, 1442389), (26, 1109530), (52, 554765), (65, 443812), (130, 221906), (181, 159380), (260, 110953), (362, 79690), (613, 47060), (724, 39845), (905, 31876), (1226, 23530), (1810, 15938), (2353, 12260), (2452, 11765), (3065, 9412), (3620, 7969), (4706, 6130)]