20840490

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2339}}^1$

素因数の和:2369

約数の個数: 80

約数和(自身を含む): 61158240

約数和(自身を除く): 40317750

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 81, 90, 99, 110, 135, 162, 165, 198, 270, 297, 330, 405, 495, 594, 810, 891, 990, 1485, 1782, 2339, 2970, 4455, 4678, 7017, 8910, 11695, 14034, 21051, 23390, 25729, 35085, 42102, 51458, 63153, 70170, 77187, 105255, 126306, 128645, 154374, 189459, 210510, 231561, 257290, 315765, 378918, 385935, 463122, 631530, 694683, 771870, 947295, 1157805, 1389366, 1894590, 2084049, 2315610, 3473415, 4168098, 6946830, 10420245, 20840490]

約数ペア:

[(1, 20840490), (2, 10420245), (3, 6946830), (5, 4168098), (6, 3473415), (9, 2315610), (10, 2084049), (11, 1894590), (15, 1389366), (18, 1157805), (22, 947295), (27, 771870), (30, 694683), (33, 631530), (45, 463122), (54, 385935), (55, 378918), (66, 315765), (81, 257290), (90, 231561), (99, 210510), (110, 189459), (135, 154374), (162, 128645), (165, 126306), (198, 105255), (270, 77187), (297, 70170), (330, 63153), (405, 51458), (495, 42102), (594, 35085), (810, 25729), (891, 23390), (990, 21051), (1485, 14034), (1782, 11695), (2339, 8910), (2970, 7017), (4455, 4678)]