1815660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 6918912

約数和(自身を除く): 5103252

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 131, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 262, 308, 315, 330, 385, 393, 396, 420, 462, 495, 524, 630, 655, 660, 693, 770, 786, 917, 924, 990, 1155, 1179, 1260, 1310, 1386, 1441, 1540, 1572, 1834, 1965, 1980, 2310, 2358, 2620, 2751, 2772, 2882, 3465, 3668, 3930, 4323, 4585, 4620, 4716, 5502, 5764, 5895, 6930, 7205, 7860, 8253, 8646, 9170, 10087, 11004, 11790, 12969, 13755, 13860, 14410, 16506, 17292, 18340, 20174, 21615, 23580, 25938, 27510, 28820, 30261, 33012, 40348, 41265, 43230, 50435, 51876, 55020, 60522, 64845, 82530, 86460, 90783, 100870, 121044, 129690, 151305, 165060, 181566, 201740, 259380, 302610, 363132, 453915, 605220, 907830, 1815660]

約数ペア:

[(1, 1815660), (2, 907830), (3, 605220), (4, 453915), (5, 363132), (6, 302610), (7, 259380), (9, 201740), (10, 181566), (11, 165060), (12, 151305), (14, 129690), (15, 121044), (18, 100870), (20, 90783), (21, 86460), (22, 82530), (28, 64845), (30, 60522), (33, 55020), (35, 51876), (36, 50435), (42, 43230), (44, 41265), (45, 40348), (55, 33012), (60, 30261), (63, 28820), (66, 27510), (70, 25938), (77, 23580), (84, 21615), (90, 20174), (99, 18340), (105, 17292), (110, 16506), (126, 14410), (131, 13860), (132, 13755), (140, 12969), (154, 11790), (165, 11004), (180, 10087), (198, 9170), (210, 8646), (220, 8253), (231, 7860), (252, 7205), (262, 6930), (308, 5895), (315, 5764), (330, 5502), (385, 4716), (393, 4620), (396, 4585), (420, 4323), (462, 3930), (495, 3668), (524, 3465), (630, 2882), (655, 2772), (660, 2751), (693, 2620), (770, 2358), (786, 2310), (917, 1980), (924, 1965), (990, 1834), (1155, 1572), (1179, 1540), (1260, 1441), (1310, 1386)]