20247344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{313}}^1$

素因数の和:645

約数の個数: 40

約数和(自身を含む): 42518112

約数和(自身を除く): 22270768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 311, 313, 622, 626, 1244, 1252, 2488, 2504, 4043, 4069, 4976, 5008, 8086, 8138, 16172, 16276, 32344, 32552, 64688, 65104, 97343, 194686, 389372, 778744, 1265459, 1557488, 2530918, 5061836, 10123672, 20247344]

約数ペア:

[(1, 20247344), (2, 10123672), (4, 5061836), (8, 2530918), (13, 1557488), (16, 1265459), (26, 778744), (52, 389372), (104, 194686), (208, 97343), (311, 65104), (313, 64688), (622, 32552), (626, 32344), (1244, 16276), (1252, 16172), (2488, 8138), (2504, 8086), (4043, 5008), (4069, 4976)]