66628520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{237959}}^1$

素因数の和:237977

約数の個数: 32

約数和(自身を含む): 171331200

約数和(自身を除く): 104702680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 237959, 475918, 951836, 1189795, 1665713, 1903672, 2379590, 3331426, 4759180, 6662852, 8328565, 9518360, 13325704, 16657130, 33314260, 66628520]

約数ペア:

[(1, 66628520), (2, 33314260), (4, 16657130), (5, 13325704), (7, 9518360), (8, 8328565), (10, 6662852), (14, 4759180), (20, 3331426), (28, 2379590), (35, 1903672), (40, 1665713), (56, 1189795), (70, 951836), (140, 475918), (280, 237959)]