18840990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{1831}}^1$

素因数の和:1862

約数の個数: 64

約数和(自身を含む): 52761600

約数和(自身を除く): 33920610

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 490, 686, 735, 1029, 1470, 1715, 1831, 2058, 3430, 3662, 5145, 5493, 9155, 10290, 10986, 12817, 18310, 25634, 27465, 38451, 54930, 64085, 76902, 89719, 128170, 179438, 192255, 269157, 384510, 448595, 538314, 628033, 897190, 1256066, 1345785, 1884099, 2691570, 3140165, 3768198, 6280330, 9420495, 18840990]

約数ペア:

[(1, 18840990), (2, 9420495), (3, 6280330), (5, 3768198), (6, 3140165), (7, 2691570), (10, 1884099), (14, 1345785), (15, 1256066), (21, 897190), (30, 628033), (35, 538314), (42, 448595), (49, 384510), (70, 269157), (98, 192255), (105, 179438), (147, 128170), (210, 89719), (245, 76902), (294, 64085), (343, 54930), (490, 38451), (686, 27465), (735, 25634), (1029, 18310), (1470, 12817), (1715, 10986), (1831, 10290), (2058, 9155), (3430, 5493), (3662, 5145)]