20325440

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3343}}^1$

素因数の和:3379

約数の個数: 56

約数和(自身を含む): 50962560

約数和(自身を除く): 30637120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3343, 6080, 6686, 13372, 16715, 26744, 33430, 53488, 63517, 66860, 106976, 127034, 133720, 213952, 254068, 267440, 317585, 508136, 534880, 635170, 1016272, 1069760, 1270340, 2032544, 2540680, 4065088, 5081360, 10162720, 20325440]

約数ペア:

[(1, 20325440), (2, 10162720), (4, 5081360), (5, 4065088), (8, 2540680), (10, 2032544), (16, 1270340), (19, 1069760), (20, 1016272), (32, 635170), (38, 534880), (40, 508136), (64, 317585), (76, 267440), (80, 254068), (95, 213952), (152, 133720), (160, 127034), (190, 106976), (304, 66860), (320, 63517), (380, 53488), (608, 33430), (760, 26744), (1216, 16715), (1520, 13372), (3040, 6686), (3343, 6080)]