20794240

素因数分解:

$2^7\times 5^1\times {\mathrm{32491}}^1$

素因数の和:32510

約数の個数: 32

約数和(自身を含む): 49712760

約数和(自身を除く): 28918520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32491, 64982, 129964, 162455, 259928, 324910, 519856, 649820, 1039712, 1299640, 2079424, 2599280, 4158848, 5198560, 10397120, 20794240]

約数ペア:

[(1, 20794240), (2, 10397120), (4, 5198560), (5, 4158848), (8, 2599280), (10, 2079424), (16, 1299640), (20, 1039712), (32, 649820), (40, 519856), (64, 324910), (80, 259928), (128, 162455), (160, 129964), (320, 64982), (640, 32491)]