18316980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^2$

素因数の和:95

約数の個数: 162

約数和(自身を含む): 63250278

約数和(自身を除く): 44933298

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 29, 30, 33, 36, 44, 45, 55, 58, 60, 66, 87, 90, 99, 110, 116, 121, 132, 145, 165, 174, 180, 198, 220, 242, 261, 290, 319, 330, 348, 363, 396, 435, 484, 495, 522, 580, 605, 638, 660, 726, 841, 870, 957, 990, 1044, 1089, 1210, 1276, 1305, 1452, 1595, 1682, 1740, 1815, 1914, 1980, 2178, 2420, 2523, 2610, 2871, 3190, 3364, 3509, 3630, 3828, 4205, 4356, 4785, 5046, 5220, 5445, 5742, 6380, 7018, 7260, 7569, 8410, 9251, 9570, 10092, 10527, 10890, 11484, 12615, 14036, 14355, 15138, 16820, 17545, 18502, 19140, 21054, 21780, 25230, 27753, 28710, 30276, 31581, 35090, 37004, 37845, 42108, 46255, 50460, 52635, 55506, 57420, 63162, 70180, 75690, 83259, 92510, 101761, 105270, 111012, 126324, 138765, 151380, 157905, 166518, 185020, 203522, 210540, 277530, 305283, 315810, 333036, 407044, 416295, 508805, 555060, 610566, 631620, 832590, 915849, 1017610, 1221132, 1526415, 1665180, 1831698, 2035220, 3052830, 3663396, 4579245, 6105660, 9158490, 18316980]

約数ペア:

[(1, 18316980), (2, 9158490), (3, 6105660), (4, 4579245), (5, 3663396), (6, 3052830), (9, 2035220), (10, 1831698), (11, 1665180), (12, 1526415), (15, 1221132), (18, 1017610), (20, 915849), (22, 832590), (29, 631620), (30, 610566), (33, 555060), (36, 508805), (44, 416295), (45, 407044), (55, 333036), (58, 315810), (60, 305283), (66, 277530), (87, 210540), (90, 203522), (99, 185020), (110, 166518), (116, 157905), (121, 151380), (132, 138765), (145, 126324), (165, 111012), (174, 105270), (180, 101761), (198, 92510), (220, 83259), (242, 75690), (261, 70180), (290, 63162), (319, 57420), (330, 55506), (348, 52635), (363, 50460), (396, 46255), (435, 42108), (484, 37845), (495, 37004), (522, 35090), (580, 31581), (605, 30276), (638, 28710), (660, 27753), (726, 25230), (841, 21780), (870, 21054), (957, 19140), (990, 18502), (1044, 17545), (1089, 16820), (1210, 15138), (1276, 14355), (1305, 14036), (1452, 12615), (1595, 11484), (1682, 10890), (1740, 10527), (1815, 10092), (1914, 9570), (1980, 9251), (2178, 8410), (2420, 7569), (2523, 7260), (2610, 7018), (2871, 6380), (3190, 5742), (3364, 5445), (3509, 5220), (3630, 5046), (3828, 4785), (4205, 4356)]