20198587465

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{137}}^1\times {\mathrm{7963}}^1$

素因数の和:8158

約数の個数: 48

約数和(自身を含む): 29172705408

約数和(自身を除く): 8974117943

約数列:

[1, 5, 7, 23, 35, 115, 137, 161, 529, 685, 805, 959, 2645, 3151, 3703, 4795, 7963, 15755, 18515, 22057, 39815, 55741, 72473, 110285, 183149, 278705, 362365, 507311, 915745, 1090931, 1282043, 2536555, 4212427, 5454655, 6410215, 7636517, 21062135, 25091413, 29486989, 38182585, 125457065, 147434945, 175639891, 577102499, 878199455, 2885512495, 4039717493, 20198587465]

約数ペア:

[(1, 20198587465), (5, 4039717493), (7, 2885512495), (23, 878199455), (35, 577102499), (115, 175639891), (137, 147434945), (161, 125457065), (529, 38182585), (685, 29486989), (805, 25091413), (959, 21062135), (2645, 7636517), (3151, 6410215), (3703, 5454655), (4795, 4212427), (7963, 2536555), (15755, 1282043), (18515, 1090931), (22057, 915745), (39815, 507311), (55741, 362365), (72473, 278705), (110285, 183149)]