20288464

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2293}}^1$

素因数の和:2387

約数の個数: 40

約数和(自身を含む): 45512960

約数和(自身を除く): 25224496

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 2293, 4424, 4586, 8848, 9172, 16051, 18344, 32102, 36688, 64204, 128408, 181147, 256816, 362294, 724588, 1268029, 1449176, 2536058, 2898352, 5072116, 10144232, 20288464]

約数ペア:

[(1, 20288464), (2, 10144232), (4, 5072116), (7, 2898352), (8, 2536058), (14, 1449176), (16, 1268029), (28, 724588), (56, 362294), (79, 256816), (112, 181147), (158, 128408), (316, 64204), (553, 36688), (632, 32102), (1106, 18344), (1264, 16051), (2212, 9172), (2293, 8848), (4424, 4586)]