18419940

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1$

素因数の和:479

約数の個数: 192

約数和(自身を含む): 71608320

約数和(自身を除く): 53188380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 165, 180, 189, 198, 210, 220, 231, 252, 270, 297, 308, 315, 330, 378, 385, 396, 420, 443, 462, 495, 540, 594, 630, 660, 693, 756, 770, 886, 924, 945, 990, 1155, 1188, 1260, 1329, 1386, 1485, 1540, 1772, 1890, 1980, 2079, 2215, 2310, 2658, 2772, 2970, 3101, 3465, 3780, 3987, 4158, 4430, 4620, 4873, 5316, 5940, 6202, 6645, 6930, 7974, 8316, 8860, 9303, 9746, 10395, 11961, 12404, 13290, 13860, 14619, 15505, 15948, 18606, 19492, 19935, 20790, 23922, 24365, 26580, 27909, 29238, 31010, 34111, 37212, 39870, 41580, 43857, 46515, 47844, 48730, 55818, 58476, 59805, 62020, 68222, 73095, 79740, 83727, 87714, 93030, 97460, 102333, 111636, 119610, 131571, 136444, 139545, 146190, 167454, 170555, 175428, 186060, 204666, 219285, 239220, 263142, 279090, 292380, 306999, 334908, 341110, 409332, 418635, 438570, 511665, 526284, 558180, 613998, 657855, 682220, 837270, 877140, 920997, 1023330, 1227996, 1315710, 1534995, 1674540, 1841994, 2046660, 2631420, 3069990, 3683988, 4604985, 6139980, 9209970, 18419940]

約数ペア:

[(1, 18419940), (2, 9209970), (3, 6139980), (4, 4604985), (5, 3683988), (6, 3069990), (7, 2631420), (9, 2046660), (10, 1841994), (11, 1674540), (12, 1534995), (14, 1315710), (15, 1227996), (18, 1023330), (20, 920997), (21, 877140), (22, 837270), (27, 682220), (28, 657855), (30, 613998), (33, 558180), (35, 526284), (36, 511665), (42, 438570), (44, 418635), (45, 409332), (54, 341110), (55, 334908), (60, 306999), (63, 292380), (66, 279090), (70, 263142), (77, 239220), (84, 219285), (90, 204666), (99, 186060), (105, 175428), (108, 170555), (110, 167454), (126, 146190), (132, 139545), (135, 136444), (140, 131571), (154, 119610), (165, 111636), (180, 102333), (189, 97460), (198, 93030), (210, 87714), (220, 83727), (231, 79740), (252, 73095), (270, 68222), (297, 62020), (308, 59805), (315, 58476), (330, 55818), (378, 48730), (385, 47844), (396, 46515), (420, 43857), (443, 41580), (462, 39870), (495, 37212), (540, 34111), (594, 31010), (630, 29238), (660, 27909), (693, 26580), (756, 24365), (770, 23922), (886, 20790), (924, 19935), (945, 19492), (990, 18606), (1155, 15948), (1188, 15505), (1260, 14619), (1329, 13860), (1386, 13290), (1485, 12404), (1540, 11961), (1772, 10395), (1890, 9746), (1980, 9303), (2079, 8860), (2215, 8316), (2310, 7974), (2658, 6930), (2772, 6645), (2970, 6202), (3101, 5940), (3465, 5316), (3780, 4873), (3987, 4620), (4158, 4430)]