1991570510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{433}}^1$

素因数の和:909

約数の個数: 64

約数和(自身を含む): 3818755584

約数和(自身を除く): 1827185074

約数列:

[1, 2, 5, 10, 31, 37, 62, 74, 155, 185, 310, 370, 401, 433, 802, 866, 1147, 2005, 2165, 2294, 4010, 4330, 5735, 11470, 12431, 13423, 14837, 16021, 24862, 26846, 29674, 32042, 62155, 67115, 74185, 80105, 124310, 134230, 148370, 160210, 173633, 347266, 459947, 496651, 868165, 919894, 993302, 1736330, 2299735, 2483255, 4599470, 4966510, 5382623, 6424421, 10765246, 12848842, 26913115, 32122105, 53826230, 64244210, 199157051, 398314102, 995785255, 1991570510]

約数ペア:

[(1, 1991570510), (2, 995785255), (5, 398314102), (10, 199157051), (31, 64244210), (37, 53826230), (62, 32122105), (74, 26913115), (155, 12848842), (185, 10765246), (310, 6424421), (370, 5382623), (401, 4966510), (433, 4599470), (802, 2483255), (866, 2299735), (1147, 1736330), (2005, 993302), (2165, 919894), (2294, 868165), (4010, 496651), (4330, 459947), (5735, 347266), (11470, 173633), (12431, 160210), (13423, 148370), (14837, 134230), (16021, 124310), (24862, 80105), (26846, 74185), (29674, 67115), (32042, 62155)]