2890180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 6499584

約数和(自身を除く): 3609404

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 103, 115, 122, 206, 230, 244, 305, 412, 460, 515, 610, 1030, 1220, 1403, 2060, 2369, 2806, 4738, 5612, 6283, 7015, 9476, 11845, 12566, 14030, 23690, 25132, 28060, 31415, 47380, 62830, 125660, 144509, 289018, 578036, 722545, 1445090, 2890180]

約数ペア:

[(1, 2890180), (2, 1445090), (4, 722545), (5, 578036), (10, 289018), (20, 144509), (23, 125660), (46, 62830), (61, 47380), (92, 31415), (103, 28060), (115, 25132), (122, 23690), (206, 14030), (230, 12566), (244, 11845), (305, 9476), (412, 7015), (460, 6283), (515, 5612), (610, 4738), (1030, 2806), (1220, 2369), (1403, 2060)]