21523500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4783}}^1$

素因数の和:4808

約数の個数: 72

約数和(自身を含む): 67913664

約数和(自身を除く): 46390164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4783, 9566, 14349, 19132, 23915, 28698, 43047, 47830, 57396, 71745, 86094, 95660, 119575, 143490, 172188, 215235, 239150, 286980, 358725, 430470, 478300, 597875, 717450, 860940, 1076175, 1195750, 1434900, 1793625, 2152350, 2391500, 3587250, 4304700, 5380875, 7174500, 10761750, 21523500]

約数ペア:

[(1, 21523500), (2, 10761750), (3, 7174500), (4, 5380875), (5, 4304700), (6, 3587250), (9, 2391500), (10, 2152350), (12, 1793625), (15, 1434900), (18, 1195750), (20, 1076175), (25, 860940), (30, 717450), (36, 597875), (45, 478300), (50, 430470), (60, 358725), (75, 286980), (90, 239150), (100, 215235), (125, 172188), (150, 143490), (180, 119575), (225, 95660), (250, 86094), (300, 71745), (375, 57396), (450, 47830), (500, 43047), (750, 28698), (900, 23915), (1125, 19132), (1500, 14349), (2250, 9566), (4500, 4783)]