9977120

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:633

約数の個数: 48

約数和(自身を含む): 23804928

約数和(自身を除く): 13827808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 491, 508, 635, 982, 1016, 1270, 1964, 2032, 2455, 2540, 3928, 4064, 4910, 5080, 7856, 9820, 10160, 15712, 19640, 20320, 39280, 62357, 78560, 124714, 249428, 311785, 498856, 623570, 997712, 1247140, 1995424, 2494280, 4988560, 9977120]

約数ペア:

[(1, 9977120), (2, 4988560), (4, 2494280), (5, 1995424), (8, 1247140), (10, 997712), (16, 623570), (20, 498856), (32, 311785), (40, 249428), (80, 124714), (127, 78560), (160, 62357), (254, 39280), (491, 20320), (508, 19640), (635, 15712), (982, 10160), (1016, 9820), (1270, 7856), (1964, 5080), (2032, 4910), (2455, 4064), (2540, 3928)]