18860800

素因数分解:

$2^8\times 5^2\times 7^1\times {\mathrm{421}}^1$

素因数の和:454

約数の個数: 108

約数和(自身を含む): 53479216

約数和(自身を除く): 34618416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 128, 140, 160, 175, 200, 224, 256, 280, 320, 350, 400, 421, 448, 560, 640, 700, 800, 842, 896, 1120, 1280, 1400, 1600, 1684, 1792, 2105, 2240, 2800, 2947, 3200, 3368, 4210, 4480, 5600, 5894, 6400, 6736, 8420, 8960, 10525, 11200, 11788, 13472, 14735, 16840, 21050, 22400, 23576, 26944, 29470, 33680, 42100, 44800, 47152, 53888, 58940, 67360, 73675, 84200, 94304, 107776, 117880, 134720, 147350, 168400, 188608, 235760, 269440, 294700, 336800, 377216, 471520, 538880, 589400, 673600, 754432, 943040, 1178800, 1347200, 1886080, 2357600, 2694400, 3772160, 4715200, 9430400, 18860800]

約数ペア:

[(1, 18860800), (2, 9430400), (4, 4715200), (5, 3772160), (7, 2694400), (8, 2357600), (10, 1886080), (14, 1347200), (16, 1178800), (20, 943040), (25, 754432), (28, 673600), (32, 589400), (35, 538880), (40, 471520), (50, 377216), (56, 336800), (64, 294700), (70, 269440), (80, 235760), (100, 188608), (112, 168400), (128, 147350), (140, 134720), (160, 117880), (175, 107776), (200, 94304), (224, 84200), (256, 73675), (280, 67360), (320, 58940), (350, 53888), (400, 47152), (421, 44800), (448, 42100), (560, 33680), (640, 29470), (700, 26944), (800, 23576), (842, 22400), (896, 21050), (1120, 16840), (1280, 14735), (1400, 13472), (1600, 11788), (1684, 11200), (1792, 10525), (2105, 8960), (2240, 8420), (2800, 6736), (2947, 6400), (3200, 5894), (3368, 5600), (4210, 4480)]