21450800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 60519936

約数和(自身を除く): 39069136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 47, 50, 56, 70, 80, 94, 100, 112, 140, 163, 175, 188, 200, 235, 280, 326, 329, 350, 376, 400, 470, 560, 652, 658, 700, 752, 815, 940, 1141, 1175, 1304, 1316, 1400, 1630, 1645, 1880, 2282, 2350, 2608, 2632, 2800, 3260, 3290, 3760, 4075, 4564, 4700, 5264, 5705, 6520, 6580, 7661, 8150, 8225, 9128, 9400, 11410, 13040, 13160, 15322, 16300, 16450, 18256, 18800, 22820, 26320, 28525, 30644, 32600, 32900, 38305, 45640, 53627, 57050, 61288, 65200, 65800, 76610, 91280, 107254, 114100, 122576, 131600, 153220, 191525, 214508, 228200, 268135, 306440, 383050, 429016, 456400, 536270, 612880, 766100, 858032, 1072540, 1340675, 1532200, 2145080, 2681350, 3064400, 4290160, 5362700, 10725400, 21450800]

約数ペア:

[(1, 21450800), (2, 10725400), (4, 5362700), (5, 4290160), (7, 3064400), (8, 2681350), (10, 2145080), (14, 1532200), (16, 1340675), (20, 1072540), (25, 858032), (28, 766100), (35, 612880), (40, 536270), (47, 456400), (50, 429016), (56, 383050), (70, 306440), (80, 268135), (94, 228200), (100, 214508), (112, 191525), (140, 153220), (163, 131600), (175, 122576), (188, 114100), (200, 107254), (235, 91280), (280, 76610), (326, 65800), (329, 65200), (350, 61288), (376, 57050), (400, 53627), (470, 45640), (560, 38305), (652, 32900), (658, 32600), (700, 30644), (752, 28525), (815, 26320), (940, 22820), (1141, 18800), (1175, 18256), (1304, 16450), (1316, 16300), (1400, 15322), (1630, 13160), (1645, 13040), (1880, 11410), (2282, 9400), (2350, 9128), (2608, 8225), (2632, 8150), (2800, 7661), (3260, 6580), (3290, 6520), (3760, 5705), (4075, 5264), (4564, 4700)]