18815600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2767}}^1$

素因数の和:2802

約数の個数: 60

約数和(自身を含む): 47880864

約数和(自身を除く): 29065264

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 2767, 3400, 5534, 6800, 11068, 13835, 22136, 27670, 44272, 47039, 55340, 69175, 94078, 110680, 138350, 188156, 221360, 235195, 276700, 376312, 470390, 553400, 752624, 940780, 1106800, 1175975, 1881560, 2351950, 3763120, 4703900, 9407800, 18815600]

約数ペア:

[(1, 18815600), (2, 9407800), (4, 4703900), (5, 3763120), (8, 2351950), (10, 1881560), (16, 1175975), (17, 1106800), (20, 940780), (25, 752624), (34, 553400), (40, 470390), (50, 376312), (68, 276700), (80, 235195), (85, 221360), (100, 188156), (136, 138350), (170, 110680), (200, 94078), (272, 69175), (340, 55340), (400, 47039), (425, 44272), (680, 27670), (850, 22136), (1360, 13835), (1700, 11068), (2767, 6800), (3400, 5534)]