280656145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 449266176

約数和(自身を除く): 168610031

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 137, 187, 313, 385, 595, 685, 935, 959, 1309, 1507, 1565, 2191, 2329, 3443, 4795, 5321, 6545, 7535, 10549, 10955, 11645, 16303, 17215, 24101, 25619, 26605, 37247, 42881, 52745, 58531, 81515, 120505, 128095, 179333, 186235, 214405, 292655, 300167, 409717, 471691, 728977, 896665, 1500835, 2048585, 2358455, 3301837, 3644885, 5102839, 8018747, 16509185, 25514195, 40093735, 56131229, 280656145]

約数ペア:

[(1, 280656145), (5, 56131229), (7, 40093735), (11, 25514195), (17, 16509185), (35, 8018747), (55, 5102839), (77, 3644885), (85, 3301837), (119, 2358455), (137, 2048585), (187, 1500835), (313, 896665), (385, 728977), (595, 471691), (685, 409717), (935, 300167), (959, 292655), (1309, 214405), (1507, 186235), (1565, 179333), (2191, 128095), (2329, 120505), (3443, 81515), (4795, 58531), (5321, 52745), (6545, 42881), (7535, 37247), (10549, 26605), (10955, 25619), (11645, 24101), (16303, 17215)]