30904520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{24923}}^1$

素因数の和:24965

約数の個数: 32

約数和(自身を含む): 71781120

約数和(自身を除く): 40876600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 24923, 49846, 99692, 124615, 199384, 249230, 498460, 772613, 996920, 1545226, 3090452, 3863065, 6180904, 7726130, 15452260, 30904520]

約数ペア:

[(1, 30904520), (2, 15452260), (4, 7726130), (5, 6180904), (8, 3863065), (10, 3090452), (20, 1545226), (31, 996920), (40, 772613), (62, 498460), (124, 249230), (155, 199384), (248, 124615), (310, 99692), (620, 49846), (1240, 24923)]