128512970

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1\times {\mathrm{461}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 236141136

約数和(自身を除く): 107628166

約数列:

[1, 2, 5, 10, 61, 122, 305, 457, 461, 610, 914, 922, 2285, 2305, 4570, 4610, 27877, 28121, 55754, 56242, 139385, 140605, 210677, 278770, 281210, 421354, 1053385, 2106770, 12851297, 25702594, 64256485, 128512970]

約数ペア:

[(1, 128512970), (2, 64256485), (5, 25702594), (10, 12851297), (61, 2106770), (122, 1053385), (305, 421354), (457, 281210), (461, 278770), (610, 210677), (914, 140605), (922, 139385), (2285, 56242), (2305, 55754), (4570, 28121), (4610, 27877)]