856740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 2439360

約数和(自身を除く): 1582620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 131, 218, 262, 327, 393, 436, 524, 545, 654, 655, 786, 1090, 1308, 1310, 1572, 1635, 1965, 2180, 2620, 3270, 3930, 6540, 7860, 14279, 28558, 42837, 57116, 71395, 85674, 142790, 171348, 214185, 285580, 428370, 856740]

約数ペア:

[(1, 856740), (2, 428370), (3, 285580), (4, 214185), (5, 171348), (6, 142790), (10, 85674), (12, 71395), (15, 57116), (20, 42837), (30, 28558), (60, 14279), (109, 7860), (131, 6540), (218, 3930), (262, 3270), (327, 2620), (393, 2180), (436, 1965), (524, 1635), (545, 1572), (654, 1310), (655, 1308), (786, 1090)]