21276720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1019}}^1$

素因数の和:1067

約数の個数: 120

約数和(自身を含む): 73990800

約数和(自身を除く): 52714080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 116, 120, 144, 145, 174, 180, 232, 240, 261, 290, 348, 360, 435, 464, 522, 580, 696, 720, 870, 1019, 1044, 1160, 1305, 1392, 1740, 2038, 2088, 2320, 2610, 3057, 3480, 4076, 4176, 5095, 5220, 6114, 6960, 8152, 9171, 10190, 10440, 12228, 15285, 16304, 18342, 20380, 20880, 24456, 29551, 30570, 36684, 40760, 45855, 48912, 59102, 61140, 73368, 81520, 88653, 91710, 118204, 122280, 146736, 147755, 177306, 183420, 236408, 244560, 265959, 295510, 354612, 366840, 443265, 472816, 531918, 591020, 709224, 733680, 886530, 1063836, 1182040, 1329795, 1418448, 1773060, 2127672, 2364080, 2659590, 3546120, 4255344, 5319180, 7092240, 10638360, 21276720]

約数ペア:

[(1, 21276720), (2, 10638360), (3, 7092240), (4, 5319180), (5, 4255344), (6, 3546120), (8, 2659590), (9, 2364080), (10, 2127672), (12, 1773060), (15, 1418448), (16, 1329795), (18, 1182040), (20, 1063836), (24, 886530), (29, 733680), (30, 709224), (36, 591020), (40, 531918), (45, 472816), (48, 443265), (58, 366840), (60, 354612), (72, 295510), (80, 265959), (87, 244560), (90, 236408), (116, 183420), (120, 177306), (144, 147755), (145, 146736), (174, 122280), (180, 118204), (232, 91710), (240, 88653), (261, 81520), (290, 73368), (348, 61140), (360, 59102), (435, 48912), (464, 45855), (522, 40760), (580, 36684), (696, 30570), (720, 29551), (870, 24456), (1019, 20880), (1044, 20380), (1160, 18342), (1305, 16304), (1392, 15285), (1740, 12228), (2038, 10440), (2088, 10190), (2320, 9171), (2610, 8152), (3057, 6960), (3480, 6114), (4076, 5220), (4176, 5095)]