20122872385

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{324641}}^1$

素因数の和:324694

約数の個数: 48

約数和(自身を含む): 31975938432

約数和(自身を除く): 11853066047

約数列:

[1, 5, 7, 11, 23, 35, 49, 55, 77, 115, 161, 245, 253, 385, 539, 805, 1127, 1265, 1771, 2695, 5635, 8855, 12397, 61985, 324641, 1623205, 2272487, 3571051, 7466743, 11362435, 15907409, 17855255, 24997357, 37333715, 52267201, 79537045, 82134173, 124986785, 174981499, 261336005, 365870407, 410670865, 574939211, 874907495, 1829352035, 2874696055, 4024574477, 20122872385]

約数ペア:

[(1, 20122872385), (5, 4024574477), (7, 2874696055), (11, 1829352035), (23, 874907495), (35, 574939211), (49, 410670865), (55, 365870407), (77, 261336005), (115, 174981499), (161, 124986785), (245, 82134173), (253, 79537045), (385, 52267201), (539, 37333715), (805, 24997357), (1127, 17855255), (1265, 15907409), (1771, 11362435), (2695, 7466743), (5635, 3571051), (8855, 2272487), (12397, 1623205), (61985, 324641)]