20307830

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{293}}^1$

素因数の和:568

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17794570

約数列:

[1, 2, 5, 10, 29, 58, 145, 239, 290, 293, 478, 586, 1195, 1465, 2390, 2930, 6931, 8497, 13862, 16994, 34655, 42485, 69310, 70027, 84970, 140054, 350135, 700270, 2030783, 4061566, 10153915, 20307830]

約数ペア:

[(1, 20307830), (2, 10153915), (5, 4061566), (10, 2030783), (29, 700270), (58, 350135), (145, 140054), (239, 84970), (290, 70027), (293, 69310), (478, 42485), (586, 34655), (1195, 16994), (1465, 13862), (2390, 8497), (2930, 6931)]