20185185

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{523}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 33804288

約数和(自身を除く): 13619103

約数列:

[1, 3, 5, 15, 31, 83, 93, 155, 249, 415, 465, 523, 1245, 1569, 2573, 2615, 7719, 7845, 12865, 16213, 38595, 43409, 48639, 81065, 130227, 217045, 243195, 651135, 1345679, 4037037, 6728395, 20185185]

約数ペア:

[(1, 20185185), (3, 6728395), (5, 4037037), (15, 1345679), (31, 651135), (83, 243195), (93, 217045), (155, 130227), (249, 81065), (415, 48639), (465, 43409), (523, 38595), (1245, 16213), (1569, 12865), (2573, 7845), (2615, 7719)]