20808675

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{4021}}^1$

素因数の和:4060

約数の個数: 36

約数和(自身を含む): 38900784

約数和(自身を除く): 18092109

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 4021, 5175, 12063, 20105, 36189, 60315, 92483, 100525, 180945, 277449, 301575, 462415, 832347, 904725, 1387245, 2312075, 4161735, 6936225, 20808675]

約数ペア:

[(1, 20808675), (3, 6936225), (5, 4161735), (9, 2312075), (15, 1387245), (23, 904725), (25, 832347), (45, 462415), (69, 301575), (75, 277449), (115, 180945), (207, 100525), (225, 92483), (345, 60315), (575, 36189), (1035, 20105), (1725, 12063), (4021, 5175)]