20308860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:305

約数の個数: 192

約数和(自身を含む): 74511360

約数和(自身を除く): 54202500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 27, 30, 33, 36, 39, 44, 45, 52, 54, 55, 60, 65, 66, 78, 90, 99, 108, 110, 117, 130, 132, 135, 143, 156, 165, 180, 195, 198, 220, 234, 260, 263, 270, 286, 297, 330, 351, 390, 396, 429, 468, 495, 526, 540, 572, 585, 594, 660, 702, 715, 780, 789, 858, 990, 1052, 1170, 1188, 1287, 1315, 1404, 1430, 1485, 1578, 1716, 1755, 1980, 2145, 2340, 2367, 2574, 2630, 2860, 2893, 2970, 3156, 3419, 3510, 3861, 3945, 4290, 4734, 5148, 5260, 5786, 5940, 6435, 6838, 7020, 7101, 7722, 7890, 8580, 8679, 9468, 10257, 11572, 11835, 12870, 13676, 14202, 14465, 15444, 15780, 17095, 17358, 19305, 20514, 23670, 25740, 26037, 28404, 28930, 30771, 34190, 34716, 35505, 37609, 38610, 41028, 43395, 47340, 51285, 52074, 57860, 61542, 68380, 71010, 75218, 77220, 78111, 86790, 92313, 102570, 104148, 112827, 123084, 130185, 142020, 150436, 153855, 156222, 173580, 184626, 188045, 205140, 225654, 260370, 307710, 312444, 338481, 369252, 376090, 390555, 451308, 461565, 520740, 564135, 615420, 676962, 752180, 781110, 923130, 1015443, 1128270, 1353924, 1562220, 1692405, 1846260, 2030886, 2256540, 3384810, 4061772, 5077215, 6769620, 10154430, 20308860]

約数ペア:

[(1, 20308860), (2, 10154430), (3, 6769620), (4, 5077215), (5, 4061772), (6, 3384810), (9, 2256540), (10, 2030886), (11, 1846260), (12, 1692405), (13, 1562220), (15, 1353924), (18, 1128270), (20, 1015443), (22, 923130), (26, 781110), (27, 752180), (30, 676962), (33, 615420), (36, 564135), (39, 520740), (44, 461565), (45, 451308), (52, 390555), (54, 376090), (55, 369252), (60, 338481), (65, 312444), (66, 307710), (78, 260370), (90, 225654), (99, 205140), (108, 188045), (110, 184626), (117, 173580), (130, 156222), (132, 153855), (135, 150436), (143, 142020), (156, 130185), (165, 123084), (180, 112827), (195, 104148), (198, 102570), (220, 92313), (234, 86790), (260, 78111), (263, 77220), (270, 75218), (286, 71010), (297, 68380), (330, 61542), (351, 57860), (390, 52074), (396, 51285), (429, 47340), (468, 43395), (495, 41028), (526, 38610), (540, 37609), (572, 35505), (585, 34716), (594, 34190), (660, 30771), (702, 28930), (715, 28404), (780, 26037), (789, 25740), (858, 23670), (990, 20514), (1052, 19305), (1170, 17358), (1188, 17095), (1287, 15780), (1315, 15444), (1404, 14465), (1430, 14202), (1485, 13676), (1578, 12870), (1716, 11835), (1755, 11572), (1980, 10257), (2145, 9468), (2340, 8679), (2367, 8580), (2574, 7890), (2630, 7722), (2860, 7101), (2893, 7020), (2970, 6838), (3156, 6435), (3419, 5940), (3510, 5786), (3861, 5260), (3945, 5148), (4290, 4734)]