81780300

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{4327}}^1$

素因数の和:4357

約数の個数: 144

約数和(自身を含む): 300536320

約数和(自身を除く): 218756020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 84, 90, 100, 105, 108, 126, 135, 140, 150, 175, 180, 189, 210, 225, 252, 270, 300, 315, 350, 378, 420, 450, 525, 540, 630, 675, 700, 756, 900, 945, 1050, 1260, 1350, 1575, 1890, 2100, 2700, 3150, 3780, 4327, 4725, 6300, 8654, 9450, 12981, 17308, 18900, 21635, 25962, 30289, 38943, 43270, 51924, 60578, 64905, 77886, 86540, 90867, 108175, 116829, 121156, 129810, 151445, 155772, 181734, 194715, 216350, 233658, 259620, 272601, 302890, 324525, 363468, 389430, 432700, 454335, 467316, 545202, 584145, 605780, 649050, 757225, 778860, 817803, 908670, 973575, 1090404, 1168290, 1298100, 1363005, 1514450, 1635606, 1817340, 1947150, 2271675, 2336580, 2726010, 2920725, 3028900, 3271212, 3894300, 4089015, 4543350, 5452020, 5841450, 6815025, 8178030, 9086700, 11682900, 13630050, 16356060, 20445075, 27260100, 40890150, 81780300]

約数ペア:

[(1, 81780300), (2, 40890150), (3, 27260100), (4, 20445075), (5, 16356060), (6, 13630050), (7, 11682900), (9, 9086700), (10, 8178030), (12, 6815025), (14, 5841450), (15, 5452020), (18, 4543350), (20, 4089015), (21, 3894300), (25, 3271212), (27, 3028900), (28, 2920725), (30, 2726010), (35, 2336580), (36, 2271675), (42, 1947150), (45, 1817340), (50, 1635606), (54, 1514450), (60, 1363005), (63, 1298100), (70, 1168290), (75, 1090404), (84, 973575), (90, 908670), (100, 817803), (105, 778860), (108, 757225), (126, 649050), (135, 605780), (140, 584145), (150, 545202), (175, 467316), (180, 454335), (189, 432700), (210, 389430), (225, 363468), (252, 324525), (270, 302890), (300, 272601), (315, 259620), (350, 233658), (378, 216350), (420, 194715), (450, 181734), (525, 155772), (540, 151445), (630, 129810), (675, 121156), (700, 116829), (756, 108175), (900, 90867), (945, 86540), (1050, 77886), (1260, 64905), (1350, 60578), (1575, 51924), (1890, 43270), (2100, 38943), (2700, 30289), (3150, 25962), (3780, 21635), (4327, 18900), (4725, 17308), (6300, 12981), (8654, 9450)]