81198855

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^2\times {\mathrm{379}}^1$

素因数の和:442

約数の個数: 60

約数和(自身を含む): 152561640

約数和(自身を除く): 71362785

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 379, 405, 529, 621, 1035, 1137, 1587, 1863, 1895, 2645, 3105, 3411, 4761, 5685, 7935, 8717, 9315, 10233, 14283, 17055, 23805, 26151, 30699, 42849, 43585, 51165, 71415, 78453, 130755, 153495, 200491, 214245, 235359, 392265, 601473, 706077, 1002455, 1176795, 1804419, 3007365, 3530385, 5413257, 9022095, 16239771, 27066285, 81198855]

約数ペア:

[(1, 81198855), (3, 27066285), (5, 16239771), (9, 9022095), (15, 5413257), (23, 3530385), (27, 3007365), (45, 1804419), (69, 1176795), (81, 1002455), (115, 706077), (135, 601473), (207, 392265), (345, 235359), (379, 214245), (405, 200491), (529, 153495), (621, 130755), (1035, 78453), (1137, 71415), (1587, 51165), (1863, 43585), (1895, 42849), (2645, 30699), (3105, 26151), (3411, 23805), (4761, 17055), (5685, 14283), (7935, 10233), (8717, 9315)]