31009720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{110749}}^1$

素因数の和:110767

約数の個数: 32

約数和(自身を含む): 79740000

約数和(自身を除く): 48730280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 110749, 221498, 442996, 553745, 775243, 885992, 1107490, 1550486, 2214980, 3100972, 3876215, 4429960, 6201944, 7752430, 15504860, 31009720]

約数ペア:

[(1, 31009720), (2, 15504860), (4, 7752430), (5, 6201944), (7, 4429960), (8, 3876215), (10, 3100972), (14, 2214980), (20, 1550486), (28, 1107490), (35, 885992), (40, 775243), (56, 553745), (70, 442996), (140, 221498), (280, 110749)]