29720840

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2129}}^1$

素因数の和:2489

約数の個数: 32

約数和(自身を含む): 67095000

約数和(自身を除く): 37374160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2129, 2792, 3490, 4258, 6980, 8516, 10645, 13960, 17032, 21290, 42580, 85160, 743021, 1486042, 2972084, 3715105, 5944168, 7430210, 14860420, 29720840]

約数ペア:

[(1, 29720840), (2, 14860420), (4, 7430210), (5, 5944168), (8, 3715105), (10, 2972084), (20, 1486042), (40, 743021), (349, 85160), (698, 42580), (1396, 21290), (1745, 17032), (2129, 13960), (2792, 10645), (3490, 8516), (4258, 6980)]