20137890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 30665310

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 79, 87, 145, 158, 174, 237, 290, 293, 395, 435, 474, 586, 790, 870, 879, 1185, 1465, 1758, 2291, 2370, 2930, 4395, 4582, 6873, 8497, 8790, 11455, 13746, 16994, 22910, 23147, 25491, 34365, 42485, 46294, 50982, 68730, 69441, 84970, 115735, 127455, 138882, 231470, 254910, 347205, 671263, 694410, 1342526, 2013789, 3356315, 4027578, 6712630, 10068945, 20137890]

約数ペア:

[(1, 20137890), (2, 10068945), (3, 6712630), (5, 4027578), (6, 3356315), (10, 2013789), (15, 1342526), (29, 694410), (30, 671263), (58, 347205), (79, 254910), (87, 231470), (145, 138882), (158, 127455), (174, 115735), (237, 84970), (290, 69441), (293, 68730), (395, 50982), (435, 46294), (474, 42485), (586, 34365), (790, 25491), (870, 23147), (879, 22910), (1185, 16994), (1465, 13746), (1758, 11455), (2291, 8790), (2370, 8497), (2930, 6873), (4395, 4582)]