20510820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1151}}^1$

素因数の和:1183

約数の個数: 120

約数和(自身を含む): 70253568

約数和(自身を除く): 49742748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1151, 1188, 1485, 1620, 1782, 1980, 2302, 2970, 3453, 3564, 4455, 4604, 5755, 5940, 6906, 8910, 10359, 11510, 12661, 13812, 17265, 17820, 20718, 23020, 25322, 31077, 34530, 37983, 41436, 50644, 51795, 62154, 63305, 69060, 75966, 93231, 103590, 113949, 124308, 126610, 151932, 155385, 186462, 189915, 207180, 227898, 253220, 310770, 341847, 372924, 379830, 455796, 466155, 569745, 621540, 683694, 759660, 932310, 1025541, 1139490, 1367388, 1709235, 1864620, 2051082, 2278980, 3418470, 4102164, 5127705, 6836940, 10255410, 20510820]

約数ペア:

[(1, 20510820), (2, 10255410), (3, 6836940), (4, 5127705), (5, 4102164), (6, 3418470), (9, 2278980), (10, 2051082), (11, 1864620), (12, 1709235), (15, 1367388), (18, 1139490), (20, 1025541), (22, 932310), (27, 759660), (30, 683694), (33, 621540), (36, 569745), (44, 466155), (45, 455796), (54, 379830), (55, 372924), (60, 341847), (66, 310770), (81, 253220), (90, 227898), (99, 207180), (108, 189915), (110, 186462), (132, 155385), (135, 151932), (162, 126610), (165, 124308), (180, 113949), (198, 103590), (220, 93231), (270, 75966), (297, 69060), (324, 63305), (330, 62154), (396, 51795), (405, 50644), (495, 41436), (540, 37983), (594, 34530), (660, 31077), (810, 25322), (891, 23020), (990, 20718), (1151, 17820), (1188, 17265), (1485, 13812), (1620, 12661), (1782, 11510), (1980, 10359), (2302, 8910), (2970, 6906), (3453, 5940), (3564, 5755), (4455, 4604)]