320570740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{4481}}^1$

素因数の和:4577

約数の個数: 72

約数和(自身を含む): 794013192

約数和(自身を除く): 473442452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 196, 245, 292, 365, 490, 511, 730, 980, 1022, 1460, 2044, 2555, 3577, 4481, 5110, 7154, 8962, 10220, 14308, 17885, 17924, 22405, 31367, 35770, 44810, 62734, 71540, 89620, 125468, 156835, 219569, 313670, 327113, 439138, 627340, 654226, 878276, 1097845, 1308452, 1635565, 2195690, 2289791, 3271130, 4391380, 4579582, 6542260, 9159164, 11448955, 16028537, 22897910, 32057074, 45795820, 64114148, 80142685, 160285370, 320570740]

約数ペア:

[(1, 320570740), (2, 160285370), (4, 80142685), (5, 64114148), (7, 45795820), (10, 32057074), (14, 22897910), (20, 16028537), (28, 11448955), (35, 9159164), (49, 6542260), (70, 4579582), (73, 4391380), (98, 3271130), (140, 2289791), (146, 2195690), (196, 1635565), (245, 1308452), (292, 1097845), (365, 878276), (490, 654226), (511, 627340), (730, 439138), (980, 327113), (1022, 313670), (1460, 219569), (2044, 156835), (2555, 125468), (3577, 89620), (4481, 71540), (5110, 62734), (7154, 44810), (8962, 35770), (10220, 31367), (14308, 22405), (17885, 17924)]