255614520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{304303}}^1$

素因数の和:304324

約数の個数: 64

約数和(自身を含む): 876395520

約数和(自身を除く): 620781000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 304303, 608606, 912909, 1217212, 1521515, 1825818, 2130121, 2434424, 3043030, 3651636, 4260242, 4564545, 6086060, 6390363, 7303272, 8520484, 9129090, 10650605, 12172120, 12780726, 17040968, 18258180, 21301210, 25561452, 31951815, 36516360, 42602420, 51122904, 63903630, 85204840, 127807260, 255614520]

約数ペア:

[(1, 255614520), (2, 127807260), (3, 85204840), (4, 63903630), (5, 51122904), (6, 42602420), (7, 36516360), (8, 31951815), (10, 25561452), (12, 21301210), (14, 18258180), (15, 17040968), (20, 12780726), (21, 12172120), (24, 10650605), (28, 9129090), (30, 8520484), (35, 7303272), (40, 6390363), (42, 6086060), (56, 4564545), (60, 4260242), (70, 3651636), (84, 3043030), (105, 2434424), (120, 2130121), (140, 1825818), (168, 1521515), (210, 1217212), (280, 912909), (420, 608606), (840, 304303)]