28543620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67961}}^1$

素因数の和:67980

約数の個数: 48

約数和(自身を含む): 91340928

約数和(自身を除く): 62797308

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67961, 135922, 203883, 271844, 339805, 407766, 475727, 679610, 815532, 951454, 1019415, 1359220, 1427181, 1902908, 2038830, 2378635, 2854362, 4077660, 4757270, 5708724, 7135905, 9514540, 14271810, 28543620]

約数ペア:

[(1, 28543620), (2, 14271810), (3, 9514540), (4, 7135905), (5, 5708724), (6, 4757270), (7, 4077660), (10, 2854362), (12, 2378635), (14, 2038830), (15, 1902908), (20, 1427181), (21, 1359220), (28, 1019415), (30, 951454), (35, 815532), (42, 679610), (60, 475727), (70, 407766), (84, 339805), (105, 271844), (140, 203883), (210, 135922), (420, 67961)]