25897240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15791}}^1$

素因数の和:15843

約数の個数: 32

約数和(自身を含む): 59693760

約数和(自身を除く): 33796520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15791, 31582, 63164, 78955, 126328, 157910, 315820, 631640, 647431, 1294862, 2589724, 3237155, 5179448, 6474310, 12948620, 25897240]

約数ペア:

[(1, 25897240), (2, 12948620), (4, 6474310), (5, 5179448), (8, 3237155), (10, 2589724), (20, 1294862), (40, 647431), (41, 631640), (82, 315820), (164, 157910), (205, 126328), (328, 78955), (410, 63164), (820, 31582), (1640, 15791)]