20172972170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1621}}^1\times {\mathrm{3301}}^1$

素因数の和:4971

約数の個数: 64

約数和(自身を含む): 40490180640

約数和(自身を除く): 20317208470

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1621, 1885, 3242, 3301, 3770, 6602, 8105, 16210, 16505, 21073, 33010, 42146, 42913, 47009, 85826, 94018, 95729, 105365, 191458, 210730, 214565, 235045, 429130, 470090, 478645, 611117, 957290, 1222234, 1244477, 2488954, 3055585, 5350921, 6111170, 6222385, 10701842, 12444770, 26754605, 53509210, 69561973, 139123946, 155176709, 310353418, 347809865, 695619730, 775883545, 1551767090, 2017297217, 4034594434, 10086486085, 20172972170]

約数ペア:

[(1, 20172972170), (2, 10086486085), (5, 4034594434), (10, 2017297217), (13, 1551767090), (26, 775883545), (29, 695619730), (58, 347809865), (65, 310353418), (130, 155176709), (145, 139123946), (290, 69561973), (377, 53509210), (754, 26754605), (1621, 12444770), (1885, 10701842), (3242, 6222385), (3301, 6111170), (3770, 5350921), (6602, 3055585), (8105, 2488954), (16210, 1244477), (16505, 1222234), (21073, 957290), (33010, 611117), (42146, 478645), (42913, 470090), (47009, 429130), (85826, 235045), (94018, 214565), (95729, 210730), (105365, 191458)]