20267025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 36188160

約数和(自身を除く): 15921135

約数列:

[1, 3, 5, 15, 23, 25, 31, 69, 75, 93, 115, 155, 345, 379, 465, 575, 713, 775, 1137, 1725, 1895, 2139, 2325, 3565, 5685, 8717, 9475, 10695, 11749, 17825, 26151, 28425, 35247, 43585, 53475, 58745, 130755, 176235, 217925, 270227, 293725, 653775, 810681, 881175, 1351135, 4053405, 6755675, 20267025]

約数ペア:

[(1, 20267025), (3, 6755675), (5, 4053405), (15, 1351135), (23, 881175), (25, 810681), (31, 653775), (69, 293725), (75, 270227), (93, 217925), (115, 176235), (155, 130755), (345, 58745), (379, 53475), (465, 43585), (575, 35247), (713, 28425), (775, 26151), (1137, 17825), (1725, 11749), (1895, 10695), (2139, 9475), (2325, 8717), (3565, 5685)]