291211121060

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3989}}^1\times {\mathrm{13879}}^1$

素因数の和:18140

約数の個数: 48

約数和(自身を含む): 614066745600

約数和(自身を除く): 322855624540

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3989, 5260, 7978, 13879, 15956, 19945, 27758, 39890, 55516, 69395, 79780, 138790, 277580, 1049107, 2098214, 3650177, 4196428, 5245535, 7300354, 10491070, 14600708, 18250885, 20982140, 36501770, 55363331, 73003540, 110726662, 221453324, 276816655, 553633310, 1107266620, 14560556053, 29121112106, 58242224212, 72802780265, 145605560530, 291211121060]

約数ペア:

[(1, 291211121060), (2, 145605560530), (4, 72802780265), (5, 58242224212), (10, 29121112106), (20, 14560556053), (263, 1107266620), (526, 553633310), (1052, 276816655), (1315, 221453324), (2630, 110726662), (3989, 73003540), (5260, 55363331), (7978, 36501770), (13879, 20982140), (15956, 18250885), (19945, 14600708), (27758, 10491070), (39890, 7300354), (55516, 5245535), (69395, 4196428), (79780, 3650177), (138790, 2098214), (277580, 1049107)]