20345240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17539}}^1$

素因数の和:17579

約数の個数: 32

約数和(自身を含む): 47358000

約数和(自身を除く): 27012760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17539, 35078, 70156, 87695, 140312, 175390, 350780, 508631, 701560, 1017262, 2034524, 2543155, 4069048, 5086310, 10172620, 20345240]

約数ペア:

[(1, 20345240), (2, 10172620), (4, 5086310), (5, 4069048), (8, 2543155), (10, 2034524), (20, 1017262), (29, 701560), (40, 508631), (58, 350780), (116, 175390), (145, 140312), (232, 87695), (290, 70156), (580, 35078), (1160, 17539)]