20196799215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1\times {\mathrm{1789}}^1$

素因数の和:2624

約数の個数: 64

約数和(自身を含む): 34568709120

約数和(自身を除く): 14371909905

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 761, 989, 1789, 2283, 2967, 3805, 4945, 5367, 8945, 11415, 14835, 17503, 26835, 32723, 41147, 52509, 76927, 87515, 98169, 123441, 163615, 205735, 230781, 262545, 384635, 490845, 617205, 752629, 1153905, 1361429, 1769321, 2257887, 3763145, 4084287, 5307963, 6807145, 8846605, 11289435, 20421435, 26539815, 31312867, 58541447, 93938601, 156564335, 175624341, 292707235, 469693005, 878121705, 1346453281, 4039359843, 6732266405, 20196799215]

約数ペア:

[(1, 20196799215), (3, 6732266405), (5, 4039359843), (15, 1346453281), (23, 878121705), (43, 469693005), (69, 292707235), (115, 175624341), (129, 156564335), (215, 93938601), (345, 58541447), (645, 31312867), (761, 26539815), (989, 20421435), (1789, 11289435), (2283, 8846605), (2967, 6807145), (3805, 5307963), (4945, 4084287), (5367, 3763145), (8945, 2257887), (11415, 1769321), (14835, 1361429), (17503, 1153905), (26835, 752629), (32723, 617205), (41147, 490845), (52509, 384635), (76927, 262545), (87515, 230781), (98169, 205735), (123441, 163615)]