20100496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2357}}^1$

素因数の和:2419

約数の個数: 40

約数和(自身を含む): 42981624

約数和(自身を除く): 22881128

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2357, 4264, 4714, 8528, 9428, 18856, 30641, 37712, 61282, 96637, 122564, 193274, 245128, 386548, 490256, 773096, 1256281, 1546192, 2512562, 5025124, 10050248, 20100496]

約数ペア:

[(1, 20100496), (2, 10050248), (4, 5025124), (8, 2512562), (13, 1546192), (16, 1256281), (26, 773096), (41, 490256), (52, 386548), (82, 245128), (104, 193274), (164, 122564), (208, 96637), (328, 61282), (533, 37712), (656, 30641), (1066, 18856), (2132, 9428), (2357, 8528), (4264, 4714)]