201991590

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1777}}^1$

素因数の和:2214

約数の個数: 64

約数和(自身を含む): 540227520

約数和(自身を除く): 338235930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 421, 842, 1263, 1777, 2105, 2526, 3554, 3789, 4210, 5331, 6315, 7578, 8885, 10662, 11367, 12630, 15993, 17770, 18945, 22734, 26655, 31986, 37890, 47979, 53310, 56835, 79965, 95958, 113670, 159930, 239895, 479790, 748117, 1496234, 2244351, 3740585, 4488702, 6733053, 7481170, 11221755, 13466106, 20199159, 22443510, 33665265, 40398318, 67330530, 100995795, 201991590]

約数ペア:

[(1, 201991590), (2, 100995795), (3, 67330530), (5, 40398318), (6, 33665265), (9, 22443510), (10, 20199159), (15, 13466106), (18, 11221755), (27, 7481170), (30, 6733053), (45, 4488702), (54, 3740585), (90, 2244351), (135, 1496234), (270, 748117), (421, 479790), (842, 239895), (1263, 159930), (1777, 113670), (2105, 95958), (2526, 79965), (3554, 56835), (3789, 53310), (4210, 47979), (5331, 37890), (6315, 31986), (7578, 26655), (8885, 22734), (10662, 18945), (11367, 17770), (12630, 15993)]