81330255020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1664557}}^1$

素因数の和:1664922

約数の個数: 48

約数和(自身を含む): 195752020800

約数和(自身を除く): 114421765780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 698, 1396, 1745, 2443, 3490, 4886, 6980, 9772, 12215, 24430, 48860, 1664557, 3329114, 6658228, 8322785, 11651899, 16645570, 23303798, 33291140, 46607596, 58259495, 116518990, 233037980, 580930393, 1161860786, 2323721572, 2904651965, 4066512751, 5809303930, 8133025502, 11618607860, 16266051004, 20332563755, 40665127510, 81330255020]

約数ペア:

[(1, 81330255020), (2, 40665127510), (4, 20332563755), (5, 16266051004), (7, 11618607860), (10, 8133025502), (14, 5809303930), (20, 4066512751), (28, 2904651965), (35, 2323721572), (70, 1161860786), (140, 580930393), (349, 233037980), (698, 116518990), (1396, 58259495), (1745, 46607596), (2443, 33291140), (3490, 23303798), (4886, 16645570), (6980, 11651899), (9772, 8322785), (12215, 6658228), (24430, 3329114), (48860, 1664557)]