20755020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 192

約数和(自身を含む): 71124480

約数和(自身を除く): 50369460

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 41, 44, 52, 55, 59, 60, 65, 66, 78, 82, 110, 118, 123, 130, 132, 143, 156, 164, 165, 177, 195, 205, 220, 236, 246, 260, 286, 295, 330, 354, 390, 410, 429, 451, 492, 533, 572, 590, 615, 649, 660, 708, 715, 767, 780, 820, 858, 885, 902, 1066, 1180, 1230, 1298, 1353, 1430, 1534, 1599, 1716, 1770, 1804, 1947, 2132, 2145, 2255, 2301, 2419, 2460, 2596, 2665, 2706, 2860, 3068, 3198, 3245, 3540, 3835, 3894, 4290, 4510, 4602, 4838, 5330, 5412, 5863, 6396, 6490, 6765, 7257, 7670, 7788, 7995, 8437, 8580, 9020, 9204, 9676, 9735, 10660, 11505, 11726, 12095, 12980, 13530, 14514, 15340, 15990, 16874, 17589, 19470, 23010, 23452, 24190, 25311, 26609, 27060, 29028, 29315, 31447, 31980, 33748, 35178, 36285, 38940, 42185, 46020, 48380, 50622, 53218, 58630, 62894, 70356, 72570, 79827, 84370, 87945, 94341, 101244, 106436, 117260, 125788, 126555, 133045, 145140, 157235, 159654, 168740, 175890, 188682, 253110, 266090, 314470, 319308, 345917, 351780, 377364, 399135, 471705, 506220, 532180, 628940, 691834, 798270, 943410, 1037751, 1383668, 1596540, 1729585, 1886820, 2075502, 3459170, 4151004, 5188755, 6918340, 10377510, 20755020]

約数ペア:

[(1, 20755020), (2, 10377510), (3, 6918340), (4, 5188755), (5, 4151004), (6, 3459170), (10, 2075502), (11, 1886820), (12, 1729585), (13, 1596540), (15, 1383668), (20, 1037751), (22, 943410), (26, 798270), (30, 691834), (33, 628940), (39, 532180), (41, 506220), (44, 471705), (52, 399135), (55, 377364), (59, 351780), (60, 345917), (65, 319308), (66, 314470), (78, 266090), (82, 253110), (110, 188682), (118, 175890), (123, 168740), (130, 159654), (132, 157235), (143, 145140), (156, 133045), (164, 126555), (165, 125788), (177, 117260), (195, 106436), (205, 101244), (220, 94341), (236, 87945), (246, 84370), (260, 79827), (286, 72570), (295, 70356), (330, 62894), (354, 58630), (390, 53218), (410, 50622), (429, 48380), (451, 46020), (492, 42185), (533, 38940), (572, 36285), (590, 35178), (615, 33748), (649, 31980), (660, 31447), (708, 29315), (715, 29028), (767, 27060), (780, 26609), (820, 25311), (858, 24190), (885, 23452), (902, 23010), (1066, 19470), (1180, 17589), (1230, 16874), (1298, 15990), (1353, 15340), (1430, 14514), (1534, 13530), (1599, 12980), (1716, 12095), (1770, 11726), (1804, 11505), (1947, 10660), (2132, 9735), (2145, 9676), (2255, 9204), (2301, 9020), (2419, 8580), (2460, 8437), (2596, 7995), (2665, 7788), (2706, 7670), (2860, 7257), (3068, 6765), (3198, 6490), (3245, 6396), (3540, 5863), (3835, 5412), (3894, 5330), (4290, 4838), (4510, 4602)]