18842800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^2\times {\mathrm{163}}^1$

素因数の和:215

約数の個数: 90

約数和(自身を含む): 48384428

約数和(自身を除く): 29541628

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 163, 170, 200, 272, 289, 326, 340, 400, 425, 578, 652, 680, 815, 850, 1156, 1304, 1360, 1445, 1630, 1700, 2312, 2608, 2771, 2890, 3260, 3400, 4075, 4624, 5542, 5780, 6520, 6800, 7225, 8150, 11084, 11560, 13040, 13855, 14450, 16300, 22168, 23120, 27710, 28900, 32600, 44336, 47107, 55420, 57800, 65200, 69275, 94214, 110840, 115600, 138550, 188428, 221680, 235535, 277100, 376856, 471070, 554200, 753712, 942140, 1108400, 1177675, 1884280, 2355350, 3768560, 4710700, 9421400, 18842800]

約数ペア:

[(1, 18842800), (2, 9421400), (4, 4710700), (5, 3768560), (8, 2355350), (10, 1884280), (16, 1177675), (17, 1108400), (20, 942140), (25, 753712), (34, 554200), (40, 471070), (50, 376856), (68, 277100), (80, 235535), (85, 221680), (100, 188428), (136, 138550), (163, 115600), (170, 110840), (200, 94214), (272, 69275), (289, 65200), (326, 57800), (340, 55420), (400, 47107), (425, 44336), (578, 32600), (652, 28900), (680, 27710), (815, 23120), (850, 22168), (1156, 16300), (1304, 14450), (1360, 13855), (1445, 13040), (1630, 11560), (1700, 11084), (2312, 8150), (2608, 7225), (2771, 6800), (2890, 6520), (3260, 5780), (3400, 5542), (4075, 4624)]