315771680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{40277}}^1$

素因数の和:40306

約数の個数: 72

約数和(自身を含む): 867829788

約数和(自身を除く): 552058108

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 40277, 80554, 161108, 201385, 281939, 322216, 402770, 563878, 644432, 805540, 1127756, 1288864, 1409695, 1611080, 1973573, 2255512, 2819390, 3222160, 3947146, 4511024, 5638780, 6444320, 7894292, 9022048, 9867865, 11277560, 15788584, 19735730, 22555120, 31577168, 39471460, 45110240, 63154336, 78942920, 157885840, 315771680]

約数ペア:

[(1, 315771680), (2, 157885840), (4, 78942920), (5, 63154336), (7, 45110240), (8, 39471460), (10, 31577168), (14, 22555120), (16, 19735730), (20, 15788584), (28, 11277560), (32, 9867865), (35, 9022048), (40, 7894292), (49, 6444320), (56, 5638780), (70, 4511024), (80, 3947146), (98, 3222160), (112, 2819390), (140, 2255512), (160, 1973573), (196, 1611080), (224, 1409695), (245, 1288864), (280, 1127756), (392, 805540), (490, 644432), (560, 563878), (784, 402770), (980, 322216), (1120, 281939), (1568, 201385), (1960, 161108), (3920, 80554), (7840, 40277)]