281837120

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28411}}^1$

素因数の和:28459

約数の個数: 56

約数和(自身を含む): 692798208

約数和(自身を除く): 410961088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 28411, 56822, 113644, 142055, 227288, 284110, 454576, 568220, 880741, 909152, 1136440, 1761482, 1818304, 2272880, 3522964, 4403705, 4545760, 7045928, 8807410, 9091520, 14091856, 17614820, 28183712, 35229640, 56367424, 70459280, 140918560, 281837120]

約数ペア:

[(1, 281837120), (2, 140918560), (4, 70459280), (5, 56367424), (8, 35229640), (10, 28183712), (16, 17614820), (20, 14091856), (31, 9091520), (32, 8807410), (40, 7045928), (62, 4545760), (64, 4403705), (80, 3522964), (124, 2272880), (155, 1818304), (160, 1761482), (248, 1136440), (310, 909152), (320, 880741), (496, 568220), (620, 454576), (992, 284110), (1240, 227288), (1984, 142055), (2480, 113644), (4960, 56822), (9920, 28411)]