19856147220

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 1152

約数和(自身を含む): 86297702400

約数和(自身を除く): 66441555180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 19, 20, 21, 26, 27, 28, 30, 34, 35, 36, 38, 39, 42, 45, 51, 52, 54, 57, 60, 63, 65, 68, 70, 76, 78, 81, 84, 85, 90, 91, 95, 102, 105, 108, 114, 117, 119, 126, 130, 133, 135, 139, 140, 153, 156, 162, 170, 171, 180, 182, 189, 190, 195, 204, 210, 221, 228, 234, 238, 243, 247, 252, 255, 260, 266, 270, 273, 278, 285, 306, 315, 323, 324, 340, 342, 351, 357, 364, 378, 380, 390, 399, 405, 417, 420, 442, 455, 459, 468, 476, 486, 494, 510, 513, 532, 540, 546, 556, 567, 570, 585, 595, 612, 630, 646, 663, 665, 684, 695, 702, 714, 741, 756, 765, 780, 798, 810, 819, 834, 855, 884, 910, 918, 945, 969, 972, 973, 988, 1020, 1026, 1053, 1071, 1092, 1105, 1134, 1140, 1170, 1190, 1197, 1215, 1235, 1251, 1260, 1292, 1326, 1330, 1365, 1377, 1390, 1404, 1428, 1482, 1530, 1539, 1547, 1596, 1615, 1620, 1638, 1668, 1701, 1710, 1729, 1755, 1785, 1807, 1820, 1836, 1890, 1938, 1946, 1989, 1995, 2052, 2085, 2106, 2142, 2210, 2223, 2261, 2268, 2295, 2340, 2363, 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約数ペア:

[(1, 19856147220), (2, 9928073610), (3, 6618715740), (4, 4964036805), (5, 3971229444), (6, 3309357870), (7, 2836592460), (9, 2206238580), (10, 1985614722), (12, 1654678935), (13, 1527395940), (14, 1418296230), (15, 1323743148), (17, 1168008660), (18, 1103119290), (19, 1045060380), (20, 992807361), (21, 945530820), (26, 763697970), (27, 735412860), (28, 709148115), (30, 661871574), (34, 584004330), (35, 567318492), (36, 551559645), (38, 522530190), (39, 509131980), (42, 472765410), (45, 441247716), (51, 389336220), (52, 381848985), (54, 367706430), (57, 348353460), (60, 330935787), (63, 315176940), (65, 305479188), (68, 292002165), (70, 283659246), (76, 261265095), (78, 254565990), (81, 245137620), (84, 236382705), (85, 233601732), (90, 220623858), (91, 218199420), (95, 209012076), (102, 194668110), (105, 189106164), (108, 183853215), (114, 174176730), (117, 169710660), (119, 166858380), (126, 157588470), (130, 152739594), (133, 149294340), (135, 147082572), (139, 142849980), (140, 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