128825640

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{39761}}^1$

素因数の和:39784

約数の個数: 80

約数和(自身を含む): 433008180

約数和(自身を除く): 304182540

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, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 39761, 79522, 119283, 159044, 198805, 238566, 318088, 357849, 397610, 477132, 596415, 715698, 795220, 954264, 1073547, 1192830, 1431396, 1590440, 1789245, 2147094, 2385660, 2862792, 3220641, 3578490, 4294188, 4771320, 5367735, 6441282, 7156980, 8588376, 10735470, 12882564, 14313960, 16103205, 21470940, 25765128, 32206410, 42941880, 64412820, 128825640]

約数ペア:

[(1, 128825640), (2, 64412820), (3, 42941880), (4, 32206410), (5, 25765128), (6, 21470940), (8, 16103205), (9, 14313960), (10, 12882564), (12, 10735470), (15, 8588376), (18, 7156980), (20, 6441282), (24, 5367735), (27, 4771320), (30, 4294188), (36, 3578490), (40, 3220641), (45, 2862792), (54, 2385660), (60, 2147094), (72, 1789245), (81, 1590440), (90, 1431396), (108, 1192830), (120, 1073547), (135, 954264), (162, 795220), (180, 715698), (216, 596415), (270, 477132), (324, 397610), (360, 357849), (405, 318088), (540, 238566), (648, 198805), (810, 159044), (1080, 119283), (1620, 79522), (3240, 39761)]