207329660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{491}}^2$

素因数の和:1034

約数の個数: 36

約数和(自身を含む): 446426904

約数和(自身を除く): 239097244

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 491, 860, 982, 1964, 2455, 4910, 9820, 21113, 42226, 84452, 105565, 211130, 241081, 422260, 482162, 964324, 1205405, 2410810, 4821620, 10366483, 20732966, 41465932, 51832415, 103664830, 207329660]

約数ペア:

[(1, 207329660), (2, 103664830), (4, 51832415), (5, 41465932), (10, 20732966), (20, 10366483), (43, 4821620), (86, 2410810), (172, 1205405), (215, 964324), (430, 482162), (491, 422260), (860, 241081), (982, 211130), (1964, 105565), (2455, 84452), (4910, 42226), (9820, 21113)]