20181491645

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{462401}}^1$

素因数の和:462485

約数の個数: 32

約数和(自身を含む): 29297790720

約数和(自身を除く): 9116299075

約数列:

[1, 5, 7, 29, 35, 43, 145, 203, 215, 301, 1015, 1247, 1505, 6235, 8729, 43645, 462401, 2312005, 3236807, 13409629, 16184035, 19883243, 67048145, 93867403, 99416215, 139182701, 469337015, 576614047, 695913505, 2883070235, 4036298329, 20181491645]

約数ペア:

[(1, 20181491645), (5, 4036298329), (7, 2883070235), (29, 695913505), (35, 576614047), (43, 469337015), (145, 139182701), (203, 99416215), (215, 93867403), (301, 67048145), (1015, 19883243), (1247, 16184035), (1505, 13409629), (6235, 3236807), (8729, 2312005), (43645, 462401)]