2145960

素因数分解:

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

素因数の和:2007

約数の個数: 64

約数和(自身を含む): 7156800

約数和(自身を除く): 5010840

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, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 1987, 3974, 5961, 7948, 9935, 11922, 15896, 17883, 19870, 23844, 29805, 35766, 39740, 47688, 53649, 59610, 71532, 79480, 89415, 107298, 119220, 143064, 178830, 214596, 238440, 268245, 357660, 429192, 536490, 715320, 1072980, 2145960]

約数ペア:

[(1, 2145960), (2, 1072980), (3, 715320), (4, 536490), (5, 429192), (6, 357660), (8, 268245), (9, 238440), (10, 214596), (12, 178830), (15, 143064), (18, 119220), (20, 107298), (24, 89415), (27, 79480), (30, 71532), (36, 59610), (40, 53649), (45, 47688), (54, 39740), (60, 35766), (72, 29805), (90, 23844), (108, 19870), (120, 17883), (135, 15896), (180, 11922), (216, 9935), (270, 7948), (360, 5961), (540, 3974), (1080, 1987)]