20978077100

素因数分解:

$2^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{193}}^1\times {\mathrm{9619}}^1$

素因数の和:9939

約数の個数: 72

約数和(自身を含む): 46168034640

約数和(自身を除く): 25189957540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 193, 226, 386, 452, 565, 772, 965, 1130, 1930, 2260, 2825, 3860, 4825, 5650, 9619, 9650, 11300, 19238, 19300, 21809, 38476, 43618, 48095, 87236, 96190, 109045, 192380, 218090, 240475, 436180, 480950, 545225, 961900, 1086947, 1090450, 1856467, 2173894, 2180900, 3712934, 4347788, 5434735, 7425868, 9282335, 10869470, 18564670, 21738940, 27173675, 37129340, 46411675, 54347350, 92823350, 108694700, 185646700, 209780771, 419561542, 839123084, 1048903855, 2097807710, 4195615420, 5244519275, 10489038550, 20978077100]

約数ペア:

[(1, 20978077100), (2, 10489038550), (4, 5244519275), (5, 4195615420), (10, 2097807710), (20, 1048903855), (25, 839123084), (50, 419561542), (100, 209780771), (113, 185646700), (193, 108694700), (226, 92823350), (386, 54347350), (452, 46411675), (565, 37129340), (772, 27173675), (965, 21738940), (1130, 18564670), (1930, 10869470), (2260, 9282335), (2825, 7425868), (3860, 5434735), (4825, 4347788), (5650, 3712934), (9619, 2180900), (9650, 2173894), (11300, 1856467), (19238, 1090450), (19300, 1086947), (21809, 961900), (38476, 545225), (43618, 480950), (48095, 436180), (87236, 240475), (96190, 218090), (109045, 192380)]