256111140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{10139}}^1$

素因数の和:10572

約数の個数: 48

約数和(自身を含む): 718885440

約数和(自身を除く): 462774300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 421, 842, 1263, 1684, 2105, 2526, 4210, 5052, 6315, 8420, 10139, 12630, 20278, 25260, 30417, 40556, 50695, 60834, 101390, 121668, 152085, 202780, 304170, 608340, 4268519, 8537038, 12805557, 17074076, 21342595, 25611114, 42685190, 51222228, 64027785, 85370380, 128055570, 256111140]

約数ペア:

[(1, 256111140), (2, 128055570), (3, 85370380), (4, 64027785), (5, 51222228), (6, 42685190), (10, 25611114), (12, 21342595), (15, 17074076), (20, 12805557), (30, 8537038), (60, 4268519), (421, 608340), (842, 304170), (1263, 202780), (1684, 152085), (2105, 121668), (2526, 101390), (4210, 60834), (5052, 50695), (6315, 40556), (8420, 30417), (10139, 25260), (12630, 20278)]