18130640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1873}}^1$

素因数の和:1908

約数の個数: 60

約数和(自身を含む): 46359012

約数和(自身を除く): 28228372

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1873, 1936, 2420, 3746, 4840, 7492, 9365, 9680, 14984, 18730, 20603, 29968, 37460, 41206, 74920, 82412, 103015, 149840, 164824, 206030, 226633, 329648, 412060, 453266, 824120, 906532, 1133165, 1648240, 1813064, 2266330, 3626128, 4532660, 9065320, 18130640]

約数ペア:

[(1, 18130640), (2, 9065320), (4, 4532660), (5, 3626128), (8, 2266330), (10, 1813064), (11, 1648240), (16, 1133165), (20, 906532), (22, 824120), (40, 453266), (44, 412060), (55, 329648), (80, 226633), (88, 206030), (110, 164824), (121, 149840), (176, 103015), (220, 82412), (242, 74920), (440, 41206), (484, 37460), (605, 29968), (880, 20603), (968, 18730), (1210, 14984), (1873, 9680), (1936, 9365), (2420, 7492), (3746, 4840)]