18161360

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:181

約数の個数: 120

約数和(自身を含む): 50762376

約数和(自身を除く): 32601016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 113, 140, 164, 196, 205, 226, 245, 280, 287, 328, 392, 410, 452, 490, 560, 565, 574, 656, 784, 791, 820, 904, 980, 1130, 1148, 1435, 1582, 1640, 1808, 1960, 2009, 2260, 2296, 2870, 3164, 3280, 3920, 3955, 4018, 4520, 4592, 4633, 5537, 5740, 6328, 7910, 8036, 9040, 9266, 10045, 11074, 11480, 12656, 15820, 16072, 18532, 20090, 22148, 22960, 23165, 27685, 31640, 32144, 32431, 37064, 40180, 44296, 46330, 55370, 63280, 64862, 74128, 80360, 88592, 92660, 110740, 129724, 160720, 162155, 185320, 221480, 227017, 259448, 324310, 370640, 442960, 454034, 518896, 648620, 908068, 1135085, 1297240, 1816136, 2270170, 2594480, 3632272, 4540340, 9080680, 18161360]

約数ペア:

[(1, 18161360), (2, 9080680), (4, 4540340), (5, 3632272), (7, 2594480), (8, 2270170), (10, 1816136), (14, 1297240), (16, 1135085), (20, 908068), (28, 648620), (35, 518896), (40, 454034), (41, 442960), (49, 370640), (56, 324310), (70, 259448), (80, 227017), (82, 221480), (98, 185320), (112, 162155), (113, 160720), (140, 129724), (164, 110740), (196, 92660), (205, 88592), (226, 80360), (245, 74128), (280, 64862), (287, 63280), (328, 55370), (392, 46330), (410, 44296), (452, 40180), (490, 37064), (560, 32431), (565, 32144), (574, 31640), (656, 27685), (784, 23165), (791, 22960), (820, 22148), (904, 20090), (980, 18532), (1130, 16072), (1148, 15820), (1435, 12656), (1582, 11480), (1640, 11074), (1808, 10045), (1960, 9266), (2009, 9040), (2260, 8036), (2296, 7910), (2870, 6328), (3164, 5740), (3280, 5537), (3920, 4633), (3955, 4592), (4018, 4520)]