19313640

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{1987}}^1$

素因数の和:2013

約数の個数: 96

約数和(自身を含む): 65126880

約数和(自身を除く): 45813240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 1987, 2430, 3240, 3974, 4860, 5961, 7948, 9720, 9935, 11922, 15896, 17883, 19870, 23844, 29805, 35766, 39740, 47688, 53649, 59610, 71532, 79480, 89415, 107298, 119220, 143064, 160947, 178830, 214596, 238440, 268245, 321894, 357660, 429192, 482841, 536490, 643788, 715320, 804735, 965682, 1072980, 1287576, 1609470, 1931364, 2145960, 2414205, 3218940, 3862728, 4828410, 6437880, 9656820, 19313640]

約数ペア:

[(1, 19313640), (2, 9656820), (3, 6437880), (4, 4828410), (5, 3862728), (6, 3218940), (8, 2414205), (9, 2145960), (10, 1931364), (12, 1609470), (15, 1287576), (18, 1072980), (20, 965682), (24, 804735), (27, 715320), (30, 643788), (36, 536490), (40, 482841), (45, 429192), (54, 357660), (60, 321894), (72, 268245), (81, 238440), (90, 214596), (108, 178830), (120, 160947), (135, 143064), (162, 119220), (180, 107298), (216, 89415), (243, 79480), (270, 71532), (324, 59610), (360, 53649), (405, 47688), (486, 39740), (540, 35766), (648, 29805), (810, 23844), (972, 19870), (1080, 17883), (1215, 15896), (1620, 11922), (1944, 9935), (1987, 9720), (2430, 7948), (3240, 5961), (3974, 4860)]