19973800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1297}}^1$

素因数の和:1331

約数の個数: 96

約数和(自身を含む): 57942720

約数和(自身を除く): 37968920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 88, 100, 110, 140, 154, 175, 200, 220, 275, 280, 308, 350, 385, 440, 550, 616, 700, 770, 1100, 1297, 1400, 1540, 1925, 2200, 2594, 3080, 3850, 5188, 6485, 7700, 9079, 10376, 12970, 14267, 15400, 18158, 25940, 28534, 32425, 36316, 45395, 51880, 57068, 64850, 71335, 72632, 90790, 99869, 114136, 129700, 142670, 181580, 199738, 226975, 259400, 285340, 356675, 363160, 399476, 453950, 499345, 570680, 713350, 798952, 907900, 998690, 1426700, 1815800, 1997380, 2496725, 2853400, 3994760, 4993450, 9986900, 19973800]

約数ペア:

[(1, 19973800), (2, 9986900), (4, 4993450), (5, 3994760), (7, 2853400), (8, 2496725), (10, 1997380), (11, 1815800), (14, 1426700), (20, 998690), (22, 907900), (25, 798952), (28, 713350), (35, 570680), (40, 499345), (44, 453950), (50, 399476), (55, 363160), (56, 356675), (70, 285340), (77, 259400), (88, 226975), (100, 199738), (110, 181580), (140, 142670), (154, 129700), (175, 114136), (200, 99869), (220, 90790), (275, 72632), (280, 71335), (308, 64850), (350, 57068), (385, 51880), (440, 45395), (550, 36316), (616, 32425), (700, 28534), (770, 25940), (1100, 18158), (1297, 15400), (1400, 14267), (1540, 12970), (1925, 10376), (2200, 9079), (2594, 7700), (3080, 6485), (3850, 5188)]