18146540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{383}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 40255488

約数和(自身を除く): 22108948

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 103, 115, 206, 230, 383, 412, 460, 515, 766, 1030, 1532, 1915, 2060, 2369, 3830, 4738, 7660, 8809, 9476, 11845, 17618, 23690, 35236, 39449, 44045, 47380, 78898, 88090, 157796, 176180, 197245, 394490, 788980, 907327, 1814654, 3629308, 4536635, 9073270, 18146540]

約数ペア:

[(1, 18146540), (2, 9073270), (4, 4536635), (5, 3629308), (10, 1814654), (20, 907327), (23, 788980), (46, 394490), (92, 197245), (103, 176180), (115, 157796), (206, 88090), (230, 78898), (383, 47380), (412, 44045), (460, 39449), (515, 35236), (766, 23690), (1030, 17618), (1532, 11845), (1915, 9476), (2060, 8809), (2369, 7660), (3830, 4738)]