397458180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{953}}^1$

素因数の和:1306

約数の個数: 144

約数和(自身を含む): 1383467904

約数和(自身を除く): 986009724

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 331, 420, 630, 662, 953, 993, 1260, 1324, 1655, 1906, 1986, 2317, 2859, 2979, 3310, 3812, 3972, 4634, 4765, 4965, 5718, 5958, 6620, 6671, 6951, 8577, 9268, 9530, 9930, 11436, 11585, 11916, 13342, 13902, 14295, 14895, 17154, 19060, 19860, 20013, 20853, 23170, 26684, 27804, 28590, 29790, 33355, 34308, 34755, 40026, 41706, 42885, 46340, 57180, 59580, 60039, 66710, 69510, 80052, 83412, 85770, 100065, 104265, 120078, 133420, 139020, 171540, 200130, 208530, 240156, 300195, 315443, 400260, 417060, 600390, 630886, 946329, 1200780, 1261772, 1577215, 1892658, 2208101, 2838987, 3154430, 3785316, 4416202, 4731645, 5677974, 6308860, 6624303, 8832404, 9463290, 11040505, 11355948, 13248606, 14194935, 18926580, 19872909, 22081010, 26497212, 28389870, 33121515, 39745818, 44162020, 56779740, 66243030, 79491636, 99364545, 132486060, 198729090, 397458180]

約数ペア:

[(1, 397458180), (2, 198729090), (3, 132486060), (4, 99364545), (5, 79491636), (6, 66243030), (7, 56779740), (9, 44162020), (10, 39745818), (12, 33121515), (14, 28389870), (15, 26497212), (18, 22081010), (20, 19872909), (21, 18926580), (28, 14194935), (30, 13248606), (35, 11355948), (36, 11040505), (42, 9463290), (45, 8832404), (60, 6624303), (63, 6308860), (70, 5677974), (84, 4731645), (90, 4416202), (105, 3785316), (126, 3154430), (140, 2838987), (180, 2208101), (210, 1892658), (252, 1577215), (315, 1261772), (331, 1200780), (420, 946329), (630, 630886), (662, 600390), (953, 417060), (993, 400260), (1260, 315443), (1324, 300195), (1655, 240156), (1906, 208530), (1986, 200130), (2317, 171540), (2859, 139020), (2979, 133420), (3310, 120078), (3812, 104265), (3972, 100065), (4634, 85770), (4765, 83412), (4965, 80052), (5718, 69510), (5958, 66710), (6620, 60039), (6671, 59580), (6951, 57180), (8577, 46340), (9268, 42885), (9530, 41706), (9930, 40026), (11436, 34755), (11585, 34308), (11916, 33355), (13342, 29790), (13902, 28590), (14295, 27804), (14895, 26684), (17154, 23170), (19060, 20853), (19860, 20013)]