916540840

素因数分解:

$2^3\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{11497}}^1$

素因数の和:13501

約数の個数: 32

約数和(自身を含む): 2063431080

約数和(自身を除く): 1146890240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1993, 3986, 7972, 9965, 11497, 15944, 19930, 22994, 39860, 45988, 57485, 79720, 91976, 114970, 229940, 459880, 22913521, 45827042, 91654084, 114567605, 183308168, 229135210, 458270420, 916540840]

約数ペア:

[(1, 916540840), (2, 458270420), (4, 229135210), (5, 183308168), (8, 114567605), (10, 91654084), (20, 45827042), (40, 22913521), (1993, 459880), (3986, 229940), (7972, 114970), (9965, 91976), (11497, 79720), (15944, 57485), (19930, 45988), (22994, 39860)]