20326250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:153

約数の個数: 80

約数和(自身を含む): 45885312

約数和(自身を除く): 25559062

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 101, 115, 125, 161, 175, 202, 230, 250, 322, 350, 505, 575, 625, 707, 805, 875, 1010, 1150, 1250, 1414, 1610, 1750, 2323, 2525, 2875, 3535, 4025, 4375, 4646, 5050, 5750, 7070, 8050, 8750, 11615, 12625, 14375, 16261, 17675, 20125, 23230, 25250, 28750, 32522, 35350, 40250, 58075, 63125, 81305, 88375, 100625, 116150, 126250, 162610, 176750, 201250, 290375, 406525, 441875, 580750, 813050, 883750, 1451875, 2032625, 2903750, 4065250, 10163125, 20326250]

約数ペア:

[(1, 20326250), (2, 10163125), (5, 4065250), (7, 2903750), (10, 2032625), (14, 1451875), (23, 883750), (25, 813050), (35, 580750), (46, 441875), (50, 406525), (70, 290375), (101, 201250), (115, 176750), (125, 162610), (161, 126250), (175, 116150), (202, 100625), (230, 88375), (250, 81305), (322, 63125), (350, 58075), (505, 40250), (575, 35350), (625, 32522), (707, 28750), (805, 25250), (875, 23230), (1010, 20125), (1150, 17675), (1250, 16261), (1414, 14375), (1610, 12625), (1750, 11615), (2323, 8750), (2525, 8050), (2875, 7070), (3535, 5750), (4025, 5050), (4375, 4646)]