19565720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 26701480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 101, 116, 145, 167, 202, 232, 290, 334, 404, 505, 580, 668, 808, 835, 1010, 1160, 1336, 1670, 2020, 2929, 3340, 4040, 4843, 5858, 6680, 9686, 11716, 14645, 16867, 19372, 23432, 24215, 29290, 33734, 38744, 48430, 58580, 67468, 84335, 96860, 117160, 134936, 168670, 193720, 337340, 489143, 674680, 978286, 1956572, 2445715, 3913144, 4891430, 9782860, 19565720]

約数ペア:

[(1, 19565720), (2, 9782860), (4, 4891430), (5, 3913144), (8, 2445715), (10, 1956572), (20, 978286), (29, 674680), (40, 489143), (58, 337340), (101, 193720), (116, 168670), (145, 134936), (167, 117160), (202, 96860), (232, 84335), (290, 67468), (334, 58580), (404, 48430), (505, 38744), (580, 33734), (668, 29290), (808, 24215), (835, 23432), (1010, 19372), (1160, 16867), (1336, 14645), (1670, 11716), (2020, 9686), (2929, 6680), (3340, 5858), (4040, 4843)]