161888940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1283}}^1$

素因数の和:1999

約数の個数: 72

約数和(自身を含む): 492146928

約数和(自身を除く): 330257988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 701, 1283, 1402, 2103, 2566, 2804, 3505, 3849, 4206, 5132, 6309, 6415, 7010, 7698, 8412, 10515, 11547, 12618, 12830, 14020, 15396, 19245, 21030, 23094, 25236, 25660, 31545, 38490, 42060, 46188, 57735, 63090, 76980, 115470, 126180, 230940, 899383, 1798766, 2698149, 3597532, 4496915, 5396298, 8094447, 8993830, 10792596, 13490745, 16188894, 17987660, 26981490, 32377788, 40472235, 53962980, 80944470, 161888940]

約数ペア:

[(1, 161888940), (2, 80944470), (3, 53962980), (4, 40472235), (5, 32377788), (6, 26981490), (9, 17987660), (10, 16188894), (12, 13490745), (15, 10792596), (18, 8993830), (20, 8094447), (30, 5396298), (36, 4496915), (45, 3597532), (60, 2698149), (90, 1798766), (180, 899383), (701, 230940), (1283, 126180), (1402, 115470), (2103, 76980), (2566, 63090), (2804, 57735), (3505, 46188), (3849, 42060), (4206, 38490), (5132, 31545), (6309, 25660), (6415, 25236), (7010, 23094), (7698, 21030), (8412, 19245), (10515, 15396), (11547, 14020), (12618, 12830)]