1999971315

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{827}}^1\times {\mathrm{881}}^1$

素因数の和:1780

約数の個数: 48

約数和(自身を含む): 3531711456

約数和(自身を除く): 1531740141

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 827, 881, 915, 2481, 2643, 2745, 4135, 4405, 7443, 7929, 12405, 13215, 37215, 39645, 50447, 53741, 151341, 161223, 252235, 268705, 454023, 483669, 728587, 756705, 806115, 2185761, 2270115, 2418345, 3642935, 6557283, 10928805, 32786415, 44443807, 133331421, 222219035, 399994263, 666657105, 1999971315]

約数ペア:

[(1, 1999971315), (3, 666657105), (5, 399994263), (9, 222219035), (15, 133331421), (45, 44443807), (61, 32786415), (183, 10928805), (305, 6557283), (549, 3642935), (827, 2418345), (881, 2270115), (915, 2185761), (2481, 806115), (2643, 756705), (2745, 728587), (4135, 483669), (4405, 454023), (7443, 268705), (7929, 252235), (12405, 161223), (13215, 151341), (37215, 53741), (39645, 50447)]