66381980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{3461}}^1$

素因数の和:3614

約数の個数: 48

約数和(自身を含む): 160526016

約数和(自身を除く): 94144036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2740, 3461, 3836, 4795, 6922, 9590, 13844, 17305, 19180, 24227, 34610, 48454, 69220, 96908, 121135, 242270, 474157, 484540, 948314, 1896628, 2370785, 3319099, 4741570, 6638198, 9483140, 13276396, 16595495, 33190990, 66381980]

約数ペア:

[(1, 66381980), (2, 33190990), (4, 16595495), (5, 13276396), (7, 9483140), (10, 6638198), (14, 4741570), (20, 3319099), (28, 2370785), (35, 1896628), (70, 948314), (137, 484540), (140, 474157), (274, 242270), (548, 121135), (685, 96908), (959, 69220), (1370, 48454), (1918, 34610), (2740, 24227), (3461, 19180), (3836, 17305), (4795, 13844), (6922, 9590)]