68727940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{10639}}^1$

素因数の和:10684

約数の個数: 48

約数和(自身を含む): 160876800

約数和(自身を除く): 92148860

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 10639, 21278, 42556, 53195, 106390, 180863, 202141, 212780, 361726, 404282, 723452, 808564, 904315, 1010705, 1808630, 2021410, 3436397, 3617260, 4042820, 6872794, 13745588, 17181985, 34363970, 68727940]

約数ペア:

[(1, 68727940), (2, 34363970), (4, 17181985), (5, 13745588), (10, 6872794), (17, 4042820), (19, 3617260), (20, 3436397), (34, 2021410), (38, 1808630), (68, 1010705), (76, 904315), (85, 808564), (95, 723452), (170, 404282), (190, 361726), (323, 212780), (340, 202141), (380, 180863), (646, 106390), (1292, 53195), (1615, 42556), (3230, 21278), (6460, 10639)]