204865540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{10463}}^1$

素因数の和:10572

約数の個数: 48

約数和(自身を含む): 474647040

約数和(自身を除く): 269781500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 10463, 19580, 20926, 41852, 52315, 104630, 115093, 209260, 230186, 460372, 575465, 931207, 1150930, 1862414, 2301860, 3724828, 4656035, 9312070, 10243277, 18624140, 20486554, 40973108, 51216385, 102432770, 204865540]

約数ペア:

[(1, 204865540), (2, 102432770), (4, 51216385), (5, 40973108), (10, 20486554), (11, 18624140), (20, 10243277), (22, 9312070), (44, 4656035), (55, 3724828), (89, 2301860), (110, 1862414), (178, 1150930), (220, 931207), (356, 575465), (445, 460372), (890, 230186), (979, 209260), (1780, 115093), (1958, 104630), (3916, 52315), (4895, 41852), (9790, 20926), (10463, 19580)]