40455760

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3221}}^1$

素因数の和:3391

約数の個数: 40

約数和(自身を含む): 94688136

約数和(自身を除く): 54232376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 3221, 6280, 6442, 12560, 12884, 16105, 25768, 32210, 51536, 64420, 128840, 257680, 505697, 1011394, 2022788, 2528485, 4045576, 5056970, 8091152, 10113940, 20227880, 40455760]

約数ペア:

[(1, 40455760), (2, 20227880), (4, 10113940), (5, 8091152), (8, 5056970), (10, 4045576), (16, 2528485), (20, 2022788), (40, 1011394), (80, 505697), (157, 257680), (314, 128840), (628, 64420), (785, 51536), (1256, 32210), (1570, 25768), (2512, 16105), (3140, 12884), (3221, 12560), (6280, 6442)]