20491290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:316

約数の個数: 96

約数和(自身を含む): 57620160

約数和(自身を除く): 37128870

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 59, 85, 90, 102, 118, 153, 170, 177, 227, 255, 295, 306, 354, 454, 510, 531, 590, 681, 765, 885, 1003, 1062, 1135, 1362, 1530, 1770, 2006, 2043, 2270, 2655, 3009, 3405, 3859, 4086, 5015, 5310, 6018, 6810, 7718, 9027, 10030, 10215, 11577, 13393, 15045, 18054, 19295, 20430, 23154, 26786, 30090, 34731, 38590, 40179, 45135, 57885, 66965, 69462, 80358, 90270, 115770, 120537, 133930, 173655, 200895, 227681, 241074, 347310, 401790, 455362, 602685, 683043, 1138405, 1205370, 1366086, 2049129, 2276810, 3415215, 4098258, 6830430, 10245645, 20491290]

約数ペア:

[(1, 20491290), (2, 10245645), (3, 6830430), (5, 4098258), (6, 3415215), (9, 2276810), (10, 2049129), (15, 1366086), (17, 1205370), (18, 1138405), (30, 683043), (34, 602685), (45, 455362), (51, 401790), (59, 347310), (85, 241074), (90, 227681), (102, 200895), (118, 173655), (153, 133930), (170, 120537), (177, 115770), (227, 90270), (255, 80358), (295, 69462), (306, 66965), (354, 57885), (454, 45135), (510, 40179), (531, 38590), (590, 34731), (681, 30090), (765, 26786), (885, 23154), (1003, 20430), (1062, 19295), (1135, 18054), (1362, 15045), (1530, 13393), (1770, 11577), (2006, 10215), (2043, 10030), (2270, 9027), (2655, 7718), (3009, 6810), (3405, 6018), (3859, 5310), (4086, 5015)]