68903320

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4339}}^1$

素因数の和:4747

約数の個数: 32

約数和(自身を含む): 155458800

約数和(自身を除く): 86555480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 4339, 7940, 8678, 15880, 17356, 21695, 34712, 43390, 86780, 173560, 1722583, 3445166, 6890332, 8612915, 13780664, 17225830, 34451660, 68903320]

約数ペア:

[(1, 68903320), (2, 34451660), (4, 17225830), (5, 13780664), (8, 8612915), (10, 6890332), (20, 3445166), (40, 1722583), (397, 173560), (794, 86780), (1588, 43390), (1985, 34712), (3176, 21695), (3970, 17356), (4339, 15880), (7940, 8678)]