991946260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{171617}}^1$

素因数の和:171660

約数の個数: 36

約数和(自身を含む): 2212842492

約数和(自身を除く): 1220896232

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 171617, 343234, 686468, 858085, 1716170, 2917489, 3432340, 5834978, 11669956, 14587445, 29174890, 49597313, 58349780, 99194626, 198389252, 247986565, 495973130, 991946260]

約数ペア:

[(1, 991946260), (2, 495973130), (4, 247986565), (5, 198389252), (10, 99194626), (17, 58349780), (20, 49597313), (34, 29174890), (68, 14587445), (85, 11669956), (170, 5834978), (289, 3432340), (340, 2917489), (578, 1716170), (1156, 858085), (1445, 686468), (2890, 343234), (5780, 171617)]