20606240

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4441}}^1$

素因数の和:4485

約数の個数: 48

約数和(自身を含む): 50372280

約数和(自身を除く): 29766040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4441, 4640, 8882, 17764, 22205, 35528, 44410, 71056, 88820, 128789, 142112, 177640, 257578, 355280, 515156, 643945, 710560, 1030312, 1287890, 2060624, 2575780, 4121248, 5151560, 10303120, 20606240]

約数ペア:

[(1, 20606240), (2, 10303120), (4, 5151560), (5, 4121248), (8, 2575780), (10, 2060624), (16, 1287890), (20, 1030312), (29, 710560), (32, 643945), (40, 515156), (58, 355280), (80, 257578), (116, 177640), (145, 142112), (160, 128789), (232, 88820), (290, 71056), (464, 44410), (580, 35528), (928, 22205), (1160, 17764), (2320, 8882), (4441, 4640)]