68560840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55291}}^1$

素因数の和:55333

約数の個数: 32

約数和(自身を含む): 159240960

約数和(自身を除く): 90680120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 55291, 110582, 221164, 276455, 442328, 552910, 1105820, 1714021, 2211640, 3428042, 6856084, 8570105, 13712168, 17140210, 34280420, 68560840]

約数ペア:

[(1, 68560840), (2, 34280420), (4, 17140210), (5, 13712168), (8, 8570105), (10, 6856084), (20, 3428042), (31, 2211640), (40, 1714021), (62, 1105820), (124, 552910), (155, 442328), (248, 276455), (310, 221164), (620, 110582), (1240, 55291)]