211415220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:546

約数の個数: 144

約数和(自身を含む): 671645520

約数和(自身を除く): 460230300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 101, 116, 145, 174, 180, 202, 261, 290, 303, 348, 401, 404, 435, 505, 522, 580, 606, 802, 870, 909, 1010, 1044, 1203, 1212, 1305, 1515, 1604, 1740, 1818, 2005, 2020, 2406, 2610, 2929, 3030, 3609, 3636, 4010, 4545, 4812, 5220, 5858, 6015, 6060, 7218, 8020, 8787, 9090, 11629, 11716, 12030, 14436, 14645, 17574, 18045, 18180, 23258, 24060, 26361, 29290, 34887, 35148, 36090, 40501, 43935, 46516, 52722, 58145, 58580, 69774, 72180, 81002, 87870, 104661, 105444, 116290, 121503, 131805, 139548, 162004, 174435, 175740, 202505, 209322, 232580, 243006, 263610, 348870, 364509, 405010, 418644, 486012, 523305, 527220, 607515, 697740, 729018, 810020, 1046610, 1174529, 1215030, 1458036, 1822545, 2093220, 2349058, 2430060, 3523587, 3645090, 4698116, 5872645, 7047174, 7290180, 10570761, 11745290, 14094348, 17617935, 21141522, 23490580, 35235870, 42283044, 52853805, 70471740, 105707610, 211415220]

約数ペア:

[(1, 211415220), (2, 105707610), (3, 70471740), (4, 52853805), (5, 42283044), (6, 35235870), (9, 23490580), (10, 21141522), (12, 17617935), (15, 14094348), (18, 11745290), (20, 10570761), (29, 7290180), (30, 7047174), (36, 5872645), (45, 4698116), (58, 3645090), (60, 3523587), (87, 2430060), (90, 2349058), (101, 2093220), (116, 1822545), (145, 1458036), (174, 1215030), (180, 1174529), (202, 1046610), (261, 810020), (290, 729018), (303, 697740), (348, 607515), (401, 527220), (404, 523305), (435, 486012), (505, 418644), (522, 405010), (580, 364509), (606, 348870), (802, 263610), (870, 243006), (909, 232580), (1010, 209322), (1044, 202505), (1203, 175740), (1212, 174435), (1305, 162004), (1515, 139548), (1604, 131805), (1740, 121503), (1818, 116290), (2005, 105444), (2020, 104661), (2406, 87870), (2610, 81002), (2929, 72180), (3030, 69774), (3609, 58580), (3636, 58145), (4010, 52722), (4545, 46516), (4812, 43935), (5220, 40501), (5858, 36090), (6015, 35148), (6060, 34887), (7218, 29290), (8020, 26361), (8787, 24060), (9090, 23258), (11629, 18180), (11716, 18045), (12030, 17574), (14436, 14645)]