20805213220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^3\times {\mathrm{1867}}^1$

素因数の和:1998

約数の個数: 96

約数和(自身を含む): 49013032320

約数和(自身を除く): 28207819100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1369, 1628, 1867, 2035, 2738, 3734, 4070, 5476, 6845, 7468, 8140, 9335, 13690, 15059, 18670, 20537, 27380, 30118, 37340, 41074, 50653, 60236, 69079, 75295, 82148, 101306, 102685, 138158, 150590, 202612, 205370, 253265, 276316, 301180, 345395, 410740, 506530, 557183, 690790, 759869, 1013060, 1114366, 1381580, 1519738, 2228732, 2555923, 2785915, 3039476, 3799345, 5111846, 5571830, 7598690, 10223692, 11143660, 12779615, 15197380, 25559230, 28115153, 51118460, 56230306, 94569151, 112460612, 140575765, 189138302, 281151530, 378276604, 472845755, 562303060, 945691510, 1040260661, 1891383020, 2080521322, 4161042644, 5201303305, 10402606610, 20805213220]

約数ペア:

[(1, 20805213220), (2, 10402606610), (4, 5201303305), (5, 4161042644), (10, 2080521322), (11, 1891383020), (20, 1040260661), (22, 945691510), (37, 562303060), (44, 472845755), (55, 378276604), (74, 281151530), (110, 189138302), (148, 140575765), (185, 112460612), (220, 94569151), (370, 56230306), (407, 51118460), (740, 28115153), (814, 25559230), (1369, 15197380), (1628, 12779615), (1867, 11143660), (2035, 10223692), (2738, 7598690), (3734, 5571830), (4070, 5111846), (5476, 3799345), (6845, 3039476), (7468, 2785915), (8140, 2555923), (9335, 2228732), (13690, 1519738), (15059, 1381580), (18670, 1114366), (20537, 1013060), (27380, 759869), (30118, 690790), (37340, 557183), (41074, 506530), (50653, 410740), (60236, 345395), (69079, 301180), (75295, 276316), (82148, 253265), (101306, 205370), (102685, 202612), (138158, 150590)]