131291316

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{280537}}^1$

素因数の和:280560

約数の個数: 36

約数和(自身を含む): 357405412

約数和(自身を除く): 226114096

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 280537, 561074, 841611, 1122148, 1683222, 2524833, 3366444, 3646981, 5049666, 7293962, 10099332, 10940943, 14587924, 21881886, 32822829, 43763772, 65645658, 131291316]

約数ペア:

[(1, 131291316), (2, 65645658), (3, 43763772), (4, 32822829), (6, 21881886), (9, 14587924), (12, 10940943), (13, 10099332), (18, 7293962), (26, 5049666), (36, 3646981), (39, 3366444), (52, 2524833), (78, 1683222), (117, 1122148), (156, 841611), (234, 561074), (468, 280537)]