20906880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10889}}^1$

素因数の和:10911

約数の個数: 64

約数和(自身を含む): 66646800

約数和(自身を除く): 45739920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10889, 21778, 32667, 43556, 54445, 65334, 87112, 108890, 130668, 163335, 174224, 217780, 261336, 326670, 348448, 435560, 522672, 653340, 696896, 871120, 1045344, 1306680, 1393792, 1742240, 2090688, 2613360, 3484480, 4181376, 5226720, 6968960, 10453440, 20906880]

約数ペア:

[(1, 20906880), (2, 10453440), (3, 6968960), (4, 5226720), (5, 4181376), (6, 3484480), (8, 2613360), (10, 2090688), (12, 1742240), (15, 1393792), (16, 1306680), (20, 1045344), (24, 871120), (30, 696896), (32, 653340), (40, 522672), (48, 435560), (60, 348448), (64, 326670), (80, 261336), (96, 217780), (120, 174224), (128, 163335), (160, 130668), (192, 108890), (240, 87112), (320, 65334), (384, 54445), (480, 43556), (640, 32667), (960, 21778), (1920, 10889)]