31512040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{112543}}^1$

素因数の和:112561

約数の個数: 32

約数和(自身を含む): 81031680

約数和(自身を除く): 49519640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 112543, 225086, 450172, 562715, 787801, 900344, 1125430, 1575602, 2250860, 3151204, 3939005, 4501720, 6302408, 7878010, 15756020, 31512040]

約数ペア:

[(1, 31512040), (2, 15756020), (4, 7878010), (5, 6302408), (7, 4501720), (8, 3939005), (10, 3151204), (14, 2250860), (20, 1575602), (28, 1125430), (35, 900344), (40, 787801), (56, 562715), (70, 450172), (140, 225086), (280, 112543)]