20400540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{14783}}^1$

素因数の和:14818

約数の個数: 48

約数和(自身を含む): 59609088

約数和(自身を除く): 39208548

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 14783, 29566, 44349, 59132, 73915, 88698, 147830, 177396, 221745, 295660, 340009, 443490, 680018, 886980, 1020027, 1360036, 1700045, 2040054, 3400090, 4080108, 5100135, 6800180, 10200270, 20400540]

約数ペア:

[(1, 20400540), (2, 10200270), (3, 6800180), (4, 5100135), (5, 4080108), (6, 3400090), (10, 2040054), (12, 1700045), (15, 1360036), (20, 1020027), (23, 886980), (30, 680018), (46, 443490), (60, 340009), (69, 295660), (92, 221745), (115, 177396), (138, 147830), (230, 88698), (276, 73915), (345, 59132), (460, 44349), (690, 29566), (1380, 14783)]