831349180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{21661}}^1$

素因数の和:21790

約数の個数: 48

約数和(自身を含む): 1856000160

約数和(自身を除く): 1024650980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 505, 1010, 1919, 2020, 3838, 7676, 9595, 19190, 21661, 38380, 43322, 86644, 108305, 216610, 411559, 433220, 823118, 1646236, 2057795, 2187761, 4115590, 4375522, 8231180, 8751044, 10938805, 21877610, 41567459, 43755220, 83134918, 166269836, 207837295, 415674590, 831349180]

約数ペア:

[(1, 831349180), (2, 415674590), (4, 207837295), (5, 166269836), (10, 83134918), (19, 43755220), (20, 41567459), (38, 21877610), (76, 10938805), (95, 8751044), (101, 8231180), (190, 4375522), (202, 4115590), (380, 2187761), (404, 2057795), (505, 1646236), (1010, 823118), (1919, 433220), (2020, 411559), (3838, 216610), (7676, 108305), (9595, 86644), (19190, 43322), (21661, 38380)]