19551780

素因数分解:

$2^2\times 3^8\times 5^1\times {\mathrm{149}}^1$

素因数の和:182

約数の個数: 108

約数和(自身を含む): 61998300

約数和(自身を除く): 42446520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 149, 162, 180, 243, 270, 298, 324, 405, 447, 486, 540, 596, 729, 745, 810, 894, 972, 1215, 1341, 1458, 1490, 1620, 1788, 2187, 2235, 2430, 2682, 2916, 2980, 3645, 4023, 4374, 4470, 4860, 5364, 6561, 6705, 7290, 8046, 8748, 8940, 10935, 12069, 13122, 13410, 14580, 16092, 20115, 21870, 24138, 26244, 26820, 32805, 36207, 40230, 43740, 48276, 60345, 65610, 72414, 80460, 108621, 120690, 131220, 144828, 181035, 217242, 241380, 325863, 362070, 434484, 543105, 651726, 724140, 977589, 1086210, 1303452, 1629315, 1955178, 2172420, 3258630, 3910356, 4887945, 6517260, 9775890, 19551780]

約数ペア:

[(1, 19551780), (2, 9775890), (3, 6517260), (4, 4887945), (5, 3910356), (6, 3258630), (9, 2172420), (10, 1955178), (12, 1629315), (15, 1303452), (18, 1086210), (20, 977589), (27, 724140), (30, 651726), (36, 543105), (45, 434484), (54, 362070), (60, 325863), (81, 241380), (90, 217242), (108, 181035), (135, 144828), (149, 131220), (162, 120690), (180, 108621), (243, 80460), (270, 72414), (298, 65610), (324, 60345), (405, 48276), (447, 43740), (486, 40230), (540, 36207), (596, 32805), (729, 26820), (745, 26244), (810, 24138), (894, 21870), (972, 20115), (1215, 16092), (1341, 14580), (1458, 13410), (1490, 13122), (1620, 12069), (1788, 10935), (2187, 8940), (2235, 8748), (2430, 8046), (2682, 7290), (2916, 6705), (2980, 6561), (3645, 5364), (4023, 4860), (4374, 4470)]