20506430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4013}}^1$

素因数の和:4100

約数の個数: 32

約数和(自身を含む): 42773184

約数和(自身を除く): 22266754

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 4013, 5110, 8026, 20065, 28091, 40130, 56182, 140455, 280910, 292949, 585898, 1464745, 2050643, 2929490, 4101286, 10253215, 20506430]

約数ペア:

[(1, 20506430), (2, 10253215), (5, 4101286), (7, 2929490), (10, 2050643), (14, 1464745), (35, 585898), (70, 292949), (73, 280910), (146, 140455), (365, 56182), (511, 40130), (730, 28091), (1022, 20065), (2555, 8026), (4013, 5110)]