240397640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{858563}}^1$

素因数の和:858581

約数の個数: 32

約数和(自身を含む): 618166080

約数和(自身を除く): 377768440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 858563, 1717126, 3434252, 4292815, 6009941, 6868504, 8585630, 12019882, 17171260, 24039764, 30049705, 34342520, 48079528, 60099410, 120198820, 240397640]

約数ペア:

[(1, 240397640), (2, 120198820), (4, 60099410), (5, 48079528), (7, 34342520), (8, 30049705), (10, 24039764), (14, 17171260), (20, 12019882), (28, 8585630), (35, 6868504), (40, 6009941), (56, 4292815), (70, 3434252), (140, 1717126), (280, 858563)]