218389640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1907}}^1$

素因数の和:2334

約数の個数: 64

約数和(自身を含む): 563241600

約数和(自身を除く): 344851960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 409, 818, 1636, 1907, 2045, 2863, 3272, 3814, 4090, 5726, 7628, 8180, 9535, 11452, 13349, 14315, 15256, 16360, 19070, 22904, 26698, 28630, 38140, 53396, 57260, 66745, 76280, 106792, 114520, 133490, 266980, 533960, 779963, 1559926, 3119852, 3899815, 5459741, 6239704, 7799630, 10919482, 15599260, 21838964, 27298705, 31198520, 43677928, 54597410, 109194820, 218389640]

約数ペア:

[(1, 218389640), (2, 109194820), (4, 54597410), (5, 43677928), (7, 31198520), (8, 27298705), (10, 21838964), (14, 15599260), (20, 10919482), (28, 7799630), (35, 6239704), (40, 5459741), (56, 3899815), (70, 3119852), (140, 1559926), (280, 779963), (409, 533960), (818, 266980), (1636, 133490), (1907, 114520), (2045, 106792), (2863, 76280), (3272, 66745), (3814, 57260), (4090, 53396), (5726, 38140), (7628, 28630), (8180, 26698), (9535, 22904), (11452, 19070), (13349, 16360), (14315, 15256)]