64219720

素因数分解:

$2^3\times 5^1\times {\mathrm{919}}^1\times {\mathrm{1747}}^1$

素因数の和:2677

約数の個数: 32

約数和(自身を含む): 144734400

約数和(自身を除く): 80514680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 919, 1747, 1838, 3494, 3676, 4595, 6988, 7352, 8735, 9190, 13976, 17470, 18380, 34940, 36760, 69880, 1605493, 3210986, 6421972, 8027465, 12843944, 16054930, 32109860, 64219720]

約数ペア:

[(1, 64219720), (2, 32109860), (4, 16054930), (5, 12843944), (8, 8027465), (10, 6421972), (20, 3210986), (40, 1605493), (919, 69880), (1747, 36760), (1838, 34940), (3494, 18380), (3676, 17470), (4595, 13976), (6988, 9190), (7352, 8735)]