20617740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:134

約数の個数: 240

約数和(自身を含む): 76839840

約数和(自身を除く): 56222100

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, 81, 89, 90, 99, 108, 110, 117, 130, 132, 135, 143, 156, 162, 165, 178, 180, 195, 198, 220, 234, 260, 267, 270, 286, 297, 324, 330, 351, 356, 390, 396, 405, 429, 445, 468, 495, 534, 540, 572, 585, 594, 660, 702, 715, 780, 801, 810, 858, 890, 891, 979, 990, 1053, 1068, 1157, 1170, 1188, 1287, 1335, 1404, 1430, 1485, 1602, 1620, 1716, 1755, 1780, 1782, 1958, 1980, 2106, 2145, 2314, 2340, 2403, 2574, 2670, 2860, 2937, 2970, 3204, 3471, 3510, 3564, 3861, 3916, 4005, 4212, 4290, 4455, 4628, 4806, 4895, 5148, 5265, 5340, 5785, 5874, 5940, 6435, 6942, 7020, 7209, 7722, 8010, 8580, 8811, 8910, 9612, 9790, 10413, 10530, 11570, 11583, 11748, 12015, 12727, 12870, 13884, 14418, 14685, 15444, 16020, 17355, 17622, 17820, 19305, 19580, 20826, 21060, 23140, 23166, 24030, 25454, 25740, 26433, 28836, 29370, 31239, 34710, 35244, 36045, 38181, 38610, 41652, 44055, 46332, 48060, 50908, 52065, 52866, 57915, 58740, 62478, 63635, 69420, 72090, 76362, 77220, 79299, 88110, 93717, 104130, 105732, 114543, 115830, 124956, 127270, 132165, 144180, 152724, 156195, 158598, 176220, 187434, 190905, 208260, 229086, 231660, 254540, 264330, 312390, 317196, 343629, 374868, 381810, 396495, 458172, 468585, 528660, 572715, 624780, 687258, 763620, 792990, 937170, 1030887, 1145430, 1374516, 1585980, 1718145, 1874340, 2061774, 2290860, 3436290, 4123548, 5154435, 6872580, 10308870, 20617740]

約数ペア:

[(1, 20617740), (2, 10308870), (3, 6872580), (4, 5154435), (5, 4123548), (6, 3436290), (9, 2290860), (10, 2061774), (11, 1874340), (12, 1718145), (13, 1585980), (15, 1374516), (18, 1145430), (20, 1030887), (22, 937170), (26, 792990), (27, 763620), (30, 687258), (33, 624780), (36, 572715), (39, 528660), (44, 468585), (45, 458172), (52, 396495), (54, 381810), (55, 374868), (60, 343629), (65, 317196), (66, 312390), (78, 264330), (81, 254540), (89, 231660), (90, 229086), (99, 208260), (108, 190905), (110, 187434), (117, 176220), (130, 158598), (132, 156195), (135, 152724), (143, 144180), (156, 132165), (162, 127270), (165, 124956), (178, 115830), (180, 114543), (195, 105732), (198, 104130), (220, 93717), (234, 88110), (260, 79299), (267, 77220), (270, 76362), (286, 72090), (297, 69420), (324, 63635), (330, 62478), (351, 58740), (356, 57915), (390, 52866), (396, 52065), (405, 50908), (429, 48060), (445, 46332), (468, 44055), (495, 41652), (534, 38610), (540, 38181), (572, 36045), (585, 35244), (594, 34710), (660, 31239), (702, 29370), (715, 28836), (780, 26433), (801, 25740), (810, 25454), (858, 24030), (890, 23166), (891, 23140), (979, 21060), (990, 20826), (1053, 19580), (1068, 19305), (1157, 17820), (1170, 17622), (1188, 17355), (1287, 16020), (1335, 15444), (1404, 14685), (1430, 14418), (1485, 13884), (1602, 12870), (1620, 12727), (1716, 12015), (1755, 11748), (1780, 11583), (1782, 11570), (1958, 10530), (1980, 10413), (2106, 9790), (2145, 9612), (2314, 8910), (2340, 8811), (2403, 8580), (2574, 8010), (2670, 7722), (2860, 7209), (2937, 7020), (2970, 6942), (3204, 6435), (3471, 5940), (3510, 5874), (3564, 5785), (3861, 5340), (3916, 5265), (4005, 5148), (4212, 4895), (4290, 4806), (4455, 4628)]