90438820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{739}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 197668800

約数和(自身を除く): 107229980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 211, 290, 422, 580, 739, 844, 1055, 1478, 2110, 2956, 3695, 4220, 6119, 7390, 12238, 14780, 21431, 24476, 30595, 42862, 61190, 85724, 107155, 122380, 155929, 214310, 311858, 428620, 623716, 779645, 1559290, 3118580, 4521941, 9043882, 18087764, 22609705, 45219410, 90438820]

約数ペア:

[(1, 90438820), (2, 45219410), (4, 22609705), (5, 18087764), (10, 9043882), (20, 4521941), (29, 3118580), (58, 1559290), (116, 779645), (145, 623716), (211, 428620), (290, 311858), (422, 214310), (580, 155929), (739, 122380), (844, 107155), (1055, 85724), (1478, 61190), (2110, 42862), (2956, 30595), (3695, 24476), (4220, 21431), (6119, 14780), (7390, 12238)]