18922330

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 41985972

約数和(自身を除く): 23063642

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 73, 98, 115, 146, 161, 230, 245, 322, 365, 490, 511, 529, 730, 805, 1022, 1058, 1127, 1610, 1679, 2254, 2555, 2645, 3358, 3577, 3703, 5110, 5290, 5635, 7154, 7406, 8395, 11270, 11753, 16790, 17885, 18515, 23506, 25921, 35770, 37030, 38617, 51842, 58765, 77234, 82271, 117530, 129605, 164542, 193085, 259210, 270319, 386170, 411355, 540638, 822710, 1351595, 1892233, 2703190, 3784466, 9461165, 18922330]

約数ペア:

[(1, 18922330), (2, 9461165), (5, 3784466), (7, 2703190), (10, 1892233), (14, 1351595), (23, 822710), (35, 540638), (46, 411355), (49, 386170), (70, 270319), (73, 259210), (98, 193085), (115, 164542), (146, 129605), (161, 117530), (230, 82271), (245, 77234), (322, 58765), (365, 51842), (490, 38617), (511, 37030), (529, 35770), (730, 25921), (805, 23506), (1022, 18515), (1058, 17885), (1127, 16790), (1610, 11753), (1679, 11270), (2254, 8395), (2555, 7406), (2645, 7154), (3358, 5635), (3577, 5290), (3703, 5110)]