18790440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:243

約数の個数: 128

約数和(自身を含む): 61067520

約数和(自身を除く): 42277080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 61, 68, 85, 102, 120, 122, 136, 151, 170, 183, 204, 244, 255, 302, 305, 340, 366, 408, 453, 488, 510, 604, 610, 680, 732, 755, 906, 915, 1020, 1037, 1208, 1220, 1464, 1510, 1812, 1830, 2040, 2074, 2265, 2440, 2567, 3020, 3111, 3624, 3660, 4148, 4530, 5134, 5185, 6040, 6222, 7320, 7701, 8296, 9060, 9211, 10268, 10370, 12444, 12835, 15402, 15555, 18120, 18422, 20536, 20740, 24888, 25670, 27633, 30804, 31110, 36844, 38505, 41480, 46055, 51340, 55266, 61608, 62220, 73688, 77010, 92110, 102680, 110532, 124440, 138165, 154020, 156587, 184220, 221064, 276330, 308040, 313174, 368440, 469761, 552660, 626348, 782935, 939522, 1105320, 1252696, 1565870, 1879044, 2348805, 3131740, 3758088, 4697610, 6263480, 9395220, 18790440]

約数ペア:

[(1, 18790440), (2, 9395220), (3, 6263480), (4, 4697610), (5, 3758088), (6, 3131740), (8, 2348805), (10, 1879044), (12, 1565870), (15, 1252696), (17, 1105320), (20, 939522), (24, 782935), (30, 626348), (34, 552660), (40, 469761), (51, 368440), (60, 313174), (61, 308040), (68, 276330), (85, 221064), (102, 184220), (120, 156587), (122, 154020), (136, 138165), (151, 124440), (170, 110532), (183, 102680), (204, 92110), (244, 77010), (255, 73688), (302, 62220), (305, 61608), (340, 55266), (366, 51340), (408, 46055), (453, 41480), (488, 38505), (510, 36844), (604, 31110), (610, 30804), (680, 27633), (732, 25670), (755, 24888), (906, 20740), (915, 20536), (1020, 18422), (1037, 18120), (1208, 15555), (1220, 15402), (1464, 12835), (1510, 12444), (1812, 10370), (1830, 10268), (2040, 9211), (2074, 9060), (2265, 8296), (2440, 7701), (2567, 7320), (3020, 6222), (3111, 6040), (3624, 5185), (3660, 5134), (4148, 4530)]