20560065840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9518549}}^1$

素因数の和:9518571

約数の個数: 80

約数和(自身を含む): 70818012000

約数和(自身を除く): 50257946160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9518549, 19037098, 28555647, 38074196, 47592745, 57111294, 76148392, 85666941, 95185490, 114222588, 142778235, 152296784, 171333882, 190370980, 228445176, 257000823, 285556470, 342667764, 380741960, 428334705, 456890352, 514001646, 571112940, 685335528, 761483920, 856669410, 1028003292, 1142225880, 1285004115, 1370671056, 1713338820, 2056006584, 2284451760, 2570008230, 3426677640, 4112013168, 5140016460, 6853355280, 10280032920, 20560065840]

約数ペア:

[(1, 20560065840), (2, 10280032920), (3, 6853355280), (4, 5140016460), (5, 4112013168), (6, 3426677640), (8, 2570008230), (9, 2284451760), (10, 2056006584), (12, 1713338820), (15, 1370671056), (16, 1285004115), (18, 1142225880), (20, 1028003292), (24, 856669410), (27, 761483920), (30, 685335528), (36, 571112940), (40, 514001646), (45, 456890352), (48, 428334705), (54, 380741960), (60, 342667764), (72, 285556470), (80, 257000823), (90, 228445176), (108, 190370980), (120, 171333882), (135, 152296784), (144, 142778235), (180, 114222588), (216, 95185490), (240, 85666941), (270, 76148392), (360, 57111294), (432, 47592745), (540, 38074196), (720, 28555647), (1080, 19037098), (2160, 9518549)]