201620268680

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{521}}^1\times {\mathrm{21839}}^1$

素因数の和:22814

約数の個数: 64

約数和(自身を含む): 455563180800

約数和(自身を除く): 253942912120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 521, 886, 1042, 1772, 2084, 2215, 2605, 3544, 4168, 4430, 5210, 8860, 10420, 17720, 20840, 21839, 43678, 87356, 109195, 174712, 218390, 230803, 436780, 461606, 873560, 923212, 1154015, 1846424, 2308030, 4616060, 9232120, 9674677, 11378119, 19349354, 22756238, 38698708, 45512476, 48373385, 56890595, 77397416, 91024952, 96746770, 113781190, 193493540, 227562380, 386987080, 455124760, 5040506717, 10081013434, 20162026868, 25202533585, 40324053736, 50405067170, 100810134340, 201620268680]

約数ペア:

[(1, 201620268680), (2, 100810134340), (4, 50405067170), (5, 40324053736), (8, 25202533585), (10, 20162026868), (20, 10081013434), (40, 5040506717), (443, 455124760), (521, 386987080), (886, 227562380), (1042, 193493540), (1772, 113781190), (2084, 96746770), (2215, 91024952), (2605, 77397416), (3544, 56890595), (4168, 48373385), (4430, 45512476), (5210, 38698708), (8860, 22756238), (10420, 19349354), (17720, 11378119), (20840, 9674677), (21839, 9232120), (43678, 4616060), (87356, 2308030), (109195, 1846424), (174712, 1154015), (218390, 923212), (230803, 873560), (436780, 461606)]