19985640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5743}}^1$

素因数の和:5786

約数の個数: 64

約数和(自身を含む): 62035200

約数和(自身を除く): 42049560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 5743, 11486, 17229, 22972, 28715, 34458, 45944, 57430, 68916, 86145, 114860, 137832, 166547, 172290, 229720, 333094, 344580, 499641, 666188, 689160, 832735, 999282, 1332376, 1665470, 1998564, 2498205, 3330940, 3997128, 4996410, 6661880, 9992820, 19985640]

約数ペア:

[(1, 19985640), (2, 9992820), (3, 6661880), (4, 4996410), (5, 3997128), (6, 3330940), (8, 2498205), (10, 1998564), (12, 1665470), (15, 1332376), (20, 999282), (24, 832735), (29, 689160), (30, 666188), (40, 499641), (58, 344580), (60, 333094), (87, 229720), (116, 172290), (120, 166547), (145, 137832), (174, 114860), (232, 86145), (290, 68916), (348, 57430), (435, 45944), (580, 34458), (696, 28715), (870, 22972), (1160, 17229), (1740, 11486), (3480, 5743)]