19840800

素因数分解:

$2^5\times 3^1\times 5^2\times 7^1\times {\mathrm{1181}}^1$

素因数の和:1211

約数の個数: 144

約数和(自身を含む): 73870272

約数和(自身を除く): 54029472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 96, 100, 105, 112, 120, 140, 150, 160, 168, 175, 200, 210, 224, 240, 280, 300, 336, 350, 400, 420, 480, 525, 560, 600, 672, 700, 800, 840, 1050, 1120, 1181, 1200, 1400, 1680, 2100, 2362, 2400, 2800, 3360, 3543, 4200, 4724, 5600, 5905, 7086, 8267, 8400, 9448, 11810, 14172, 16534, 16800, 17715, 18896, 23620, 24801, 28344, 29525, 33068, 35430, 37792, 41335, 47240, 49602, 56688, 59050, 66136, 70860, 82670, 88575, 94480, 99204, 113376, 118100, 124005, 132272, 141720, 165340, 177150, 188960, 198408, 206675, 236200, 248010, 264544, 283440, 330680, 354300, 396816, 413350, 472400, 496020, 566880, 620025, 661360, 708600, 793632, 826700, 944800, 992040, 1240050, 1322720, 1417200, 1653400, 1984080, 2480100, 2834400, 3306800, 3968160, 4960200, 6613600, 9920400, 19840800]

約数ペア:

[(1, 19840800), (2, 9920400), (3, 6613600), (4, 4960200), (5, 3968160), (6, 3306800), (7, 2834400), (8, 2480100), (10, 1984080), (12, 1653400), (14, 1417200), (15, 1322720), (16, 1240050), (20, 992040), (21, 944800), (24, 826700), (25, 793632), (28, 708600), (30, 661360), (32, 620025), (35, 566880), (40, 496020), (42, 472400), (48, 413350), (50, 396816), (56, 354300), (60, 330680), (70, 283440), (75, 264544), (80, 248010), (84, 236200), (96, 206675), (100, 198408), (105, 188960), (112, 177150), (120, 165340), (140, 141720), (150, 132272), (160, 124005), (168, 118100), (175, 113376), (200, 99204), (210, 94480), (224, 88575), (240, 82670), (280, 70860), (300, 66136), (336, 59050), (350, 56688), (400, 49602), (420, 47240), (480, 41335), (525, 37792), (560, 35430), (600, 33068), (672, 29525), (700, 28344), (800, 24801), (840, 23620), (1050, 18896), (1120, 17715), (1181, 16800), (1200, 16534), (1400, 14172), (1680, 11810), (2100, 9448), (2362, 8400), (2400, 8267), (2800, 7086), (3360, 5905), (3543, 5600), (4200, 4724)]