128472080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{145991}}^1$

素因数の和:146015

約数の個数: 40

約数和(自身を含む): 325854144

約数和(自身を除く): 197382064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 145991, 291982, 583964, 729955, 1167928, 1459910, 1605901, 2335856, 2919820, 3211802, 5839640, 6423604, 8029505, 11679280, 12847208, 16059010, 25694416, 32118020, 64236040, 128472080]

約数ペア:

[(1, 128472080), (2, 64236040), (4, 32118020), (5, 25694416), (8, 16059010), (10, 12847208), (11, 11679280), (16, 8029505), (20, 6423604), (22, 5839640), (40, 3211802), (44, 2919820), (55, 2335856), (80, 1605901), (88, 1459910), (110, 1167928), (176, 729955), (220, 583964), (440, 291982), (880, 145991)]