20993310

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5981}}^1$

素因数の和:6010

約数の個数: 64

約数和(自身を含む): 60298560

約数和(自身を除く): 39305250

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 90, 117, 130, 135, 195, 234, 270, 351, 390, 585, 702, 1170, 1755, 3510, 5981, 11962, 17943, 29905, 35886, 53829, 59810, 77753, 89715, 107658, 155506, 161487, 179430, 233259, 269145, 322974, 388765, 466518, 538290, 699777, 777530, 807435, 1166295, 1399554, 1614870, 2099331, 2332590, 3498885, 4198662, 6997770, 10496655, 20993310]

約数ペア:

[(1, 20993310), (2, 10496655), (3, 6997770), (5, 4198662), (6, 3498885), (9, 2332590), (10, 2099331), (13, 1614870), (15, 1399554), (18, 1166295), (26, 807435), (27, 777530), (30, 699777), (39, 538290), (45, 466518), (54, 388765), (65, 322974), (78, 269145), (90, 233259), (117, 179430), (130, 161487), (135, 155506), (195, 107658), (234, 89715), (270, 77753), (351, 59810), (390, 53829), (585, 35886), (702, 29905), (1170, 17943), (1755, 11962), (3510, 5981)]