200500420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{1123}}^1$

素因数の和:1324

約数の個数: 48

約数和(自身を含む): 430536960

約数和(自身を除く): 230036540

約数列:

[1, 2, 4, 5, 10, 20, 79, 113, 158, 226, 316, 395, 452, 565, 790, 1123, 1130, 1580, 2246, 2260, 4492, 5615, 8927, 11230, 17854, 22460, 35708, 44635, 88717, 89270, 126899, 177434, 178540, 253798, 354868, 443585, 507596, 634495, 887170, 1268990, 1774340, 2537980, 10025021, 20050042, 40100084, 50125105, 100250210, 200500420]

約数ペア:

[(1, 200500420), (2, 100250210), (4, 50125105), (5, 40100084), (10, 20050042), (20, 10025021), (79, 2537980), (113, 1774340), (158, 1268990), (226, 887170), (316, 634495), (395, 507596), (452, 443585), (565, 354868), (790, 253798), (1123, 178540), (1130, 177434), (1580, 126899), (2246, 89270), (2260, 88717), (4492, 44635), (5615, 35708), (8927, 22460), (11230, 17854)]