20948440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18059}}^1$

素因数の和:18099

約数の個数: 32

約数和(自身を含む): 48762000

約数和(自身を除く): 27813560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18059, 36118, 72236, 90295, 144472, 180590, 361180, 523711, 722360, 1047422, 2094844, 2618555, 4189688, 5237110, 10474220, 20948440]

約数ペア:

[(1, 20948440), (2, 10474220), (4, 5237110), (5, 4189688), (8, 2618555), (10, 2094844), (20, 1047422), (29, 722360), (40, 523711), (58, 361180), (116, 180590), (145, 144472), (232, 90295), (290, 72236), (580, 36118), (1160, 18059)]