18207950

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 35997696

約数和(自身を除く): 17789746

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 71, 115, 142, 223, 230, 355, 446, 575, 710, 1115, 1150, 1633, 1775, 2230, 3266, 3550, 5129, 5575, 8165, 10258, 11150, 15833, 16330, 25645, 31666, 40825, 51290, 79165, 81650, 128225, 158330, 256450, 364159, 395825, 728318, 791650, 1820795, 3641590, 9103975, 18207950]

約数ペア:

[(1, 18207950), (2, 9103975), (5, 3641590), (10, 1820795), (23, 791650), (25, 728318), (46, 395825), (50, 364159), (71, 256450), (115, 158330), (142, 128225), (223, 81650), (230, 79165), (355, 51290), (446, 40825), (575, 31666), (710, 25645), (1115, 16330), (1150, 15833), (1633, 11150), (1775, 10258), (2230, 8165), (3266, 5575), (3550, 5129)]