3980212990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{78707}}^1$

素因数の和:79116

約数の個数: 32

約数和(自身を含む): 7735422240

約数和(自身を除く): 3755209250

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 389, 778, 1945, 3890, 5057, 10114, 25285, 50570, 78707, 157414, 393535, 787070, 1023191, 2046382, 5115955, 10231910, 30617023, 61234046, 153085115, 306170230, 398021299, 796042598, 1990106495, 3980212990]

約数ペア:

[(1, 3980212990), (2, 1990106495), (5, 796042598), (10, 398021299), (13, 306170230), (26, 153085115), (65, 61234046), (130, 30617023), (389, 10231910), (778, 5115955), (1945, 2046382), (3890, 1023191), (5057, 787070), (10114, 393535), (25285, 157414), (50570, 78707)]