30856880

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{2131}}^1$

素因数の和:2325

約数の個数: 40

約数和(自身を含む): 72172464

約数和(自身を除く): 41315584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2131, 2896, 3620, 4262, 7240, 8524, 10655, 14480, 17048, 21310, 34096, 42620, 85240, 170480, 385711, 771422, 1542844, 1928555, 3085688, 3857110, 6171376, 7714220, 15428440, 30856880]

約数ペア:

[(1, 30856880), (2, 15428440), (4, 7714220), (5, 6171376), (8, 3857110), (10, 3085688), (16, 1928555), (20, 1542844), (40, 771422), (80, 385711), (181, 170480), (362, 85240), (724, 42620), (905, 34096), (1448, 21310), (1810, 17048), (2131, 14480), (2896, 10655), (3620, 8524), (4262, 7240)]