68209780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{11801}}^1$

素因数の和:11844

約数の個数: 36

約数和(自身を含む): 152174988

約数和(自身を除く): 83965208

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 11801, 23602, 47204, 59005, 118010, 200617, 236020, 401234, 802468, 1003085, 2006170, 3410489, 4012340, 6820978, 13641956, 17052445, 34104890, 68209780]

約数ペア:

[(1, 68209780), (2, 34104890), (4, 17052445), (5, 13641956), (10, 6820978), (17, 4012340), (20, 3410489), (34, 2006170), (68, 1003085), (85, 802468), (170, 401234), (289, 236020), (340, 200617), (578, 118010), (1156, 59005), (1445, 47204), (2890, 23602), (5780, 11801)]