18085280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 96

約数和(自身を含む): 46403280

約数和(自身を除く): 28318000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 61, 68, 80, 85, 109, 122, 136, 160, 170, 218, 244, 272, 305, 340, 436, 488, 544, 545, 610, 680, 872, 976, 1037, 1090, 1220, 1360, 1744, 1853, 1952, 2074, 2180, 2440, 2720, 3488, 3706, 4148, 4360, 4880, 5185, 6649, 7412, 8296, 8720, 9265, 9760, 10370, 13298, 14824, 16592, 17440, 18530, 20740, 26596, 29648, 33184, 33245, 37060, 41480, 53192, 59296, 66490, 74120, 82960, 106384, 113033, 132980, 148240, 165920, 212768, 226066, 265960, 296480, 452132, 531920, 565165, 904264, 1063840, 1130330, 1808528, 2260660, 3617056, 4521320, 9042640, 18085280]

約数ペア:

[(1, 18085280), (2, 9042640), (4, 4521320), (5, 3617056), (8, 2260660), (10, 1808528), (16, 1130330), (17, 1063840), (20, 904264), (32, 565165), (34, 531920), (40, 452132), (61, 296480), (68, 265960), (80, 226066), (85, 212768), (109, 165920), (122, 148240), (136, 132980), (160, 113033), (170, 106384), (218, 82960), (244, 74120), (272, 66490), (305, 59296), (340, 53192), (436, 41480), (488, 37060), (544, 33245), (545, 33184), (610, 29648), (680, 26596), (872, 20740), (976, 18530), (1037, 17440), (1090, 16592), (1220, 14824), (1360, 13298), (1744, 10370), (1853, 9760), (1952, 9265), (2074, 8720), (2180, 8296), (2440, 7412), (2720, 6649), (3488, 5185), (3706, 4880), (4148, 4360)]