128736860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{5857}}^1$

素因数の和:6030

約数の個数: 48

約数和(自身を含む): 310989504

約数和(自身を除く): 182252644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 5857, 10990, 11714, 21980, 23428, 29285, 40999, 58570, 81998, 117140, 163996, 204995, 409990, 819980, 919549, 1839098, 3678196, 4597745, 6436843, 9195490, 12873686, 18390980, 25747372, 32184215, 64368430, 128736860]

約数ペア:

[(1, 128736860), (2, 64368430), (4, 32184215), (5, 25747372), (7, 18390980), (10, 12873686), (14, 9195490), (20, 6436843), (28, 4597745), (35, 3678196), (70, 1839098), (140, 919549), (157, 819980), (314, 409990), (628, 204995), (785, 163996), (1099, 117140), (1570, 81998), (2198, 58570), (3140, 40999), (4396, 29285), (5495, 23428), (5857, 21980), (10990, 11714)]