64868580

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{131}}^2$

素因数の和:287

約数の個数: 144

約数和(自身を含む): 232417920

約数和(自身を除く): 167549340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 131, 135, 140, 180, 189, 210, 252, 262, 270, 315, 378, 393, 420, 524, 540, 630, 655, 756, 786, 917, 945, 1179, 1260, 1310, 1572, 1834, 1890, 1965, 2358, 2620, 2751, 3537, 3668, 3780, 3930, 4585, 4716, 5502, 5895, 7074, 7860, 8253, 9170, 11004, 11790, 13755, 14148, 16506, 17161, 17685, 18340, 23580, 24759, 27510, 33012, 34322, 35370, 41265, 49518, 51483, 55020, 68644, 70740, 82530, 85805, 99036, 102966, 120127, 123795, 154449, 165060, 171610, 205932, 240254, 247590, 257415, 308898, 343220, 360381, 463347, 480508, 495180, 514830, 600635, 617796, 720762, 772245, 926694, 1029660, 1081143, 1201270, 1441524, 1544490, 1801905, 1853388, 2162286, 2316735, 2402540, 3088980, 3243429, 3603810, 4324572, 4633470, 5405715, 6486858, 7207620, 9266940, 10811430, 12973716, 16217145, 21622860, 32434290, 64868580]

約数ペア:

[(1, 64868580), (2, 32434290), (3, 21622860), (4, 16217145), (5, 12973716), (6, 10811430), (7, 9266940), (9, 7207620), (10, 6486858), (12, 5405715), (14, 4633470), (15, 4324572), (18, 3603810), (20, 3243429), (21, 3088980), (27, 2402540), (28, 2316735), (30, 2162286), (35, 1853388), (36, 1801905), (42, 1544490), (45, 1441524), (54, 1201270), (60, 1081143), (63, 1029660), (70, 926694), (84, 772245), (90, 720762), (105, 617796), (108, 600635), (126, 514830), (131, 495180), (135, 480508), (140, 463347), (180, 360381), (189, 343220), (210, 308898), (252, 257415), (262, 247590), (270, 240254), (315, 205932), (378, 171610), (393, 165060), (420, 154449), (524, 123795), (540, 120127), (630, 102966), (655, 99036), (756, 85805), (786, 82530), (917, 70740), (945, 68644), (1179, 55020), (1260, 51483), (1310, 49518), (1572, 41265), (1834, 35370), (1890, 34322), (1965, 33012), (2358, 27510), (2620, 24759), (2751, 23580), (3537, 18340), (3668, 17685), (3780, 17161), (3930, 16506), (4585, 14148), (4716, 13755), (5502, 11790), (5895, 11004), (7074, 9170), (7860, 8253)]