28768040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{809}}^1$

素因数の和:954

約数の個数: 64

約数和(自身を含む): 74649600

約数和(自身を除く): 45881560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 635, 809, 889, 1016, 1270, 1618, 1778, 2540, 3236, 3556, 4045, 4445, 5080, 5663, 6472, 7112, 8090, 8890, 11326, 16180, 17780, 22652, 28315, 32360, 35560, 45304, 56630, 102743, 113260, 205486, 226520, 410972, 513715, 719201, 821944, 1027430, 1438402, 2054860, 2876804, 3596005, 4109720, 5753608, 7192010, 14384020, 28768040]

約数ペア:

[(1, 28768040), (2, 14384020), (4, 7192010), (5, 5753608), (7, 4109720), (8, 3596005), (10, 2876804), (14, 2054860), (20, 1438402), (28, 1027430), (35, 821944), (40, 719201), (56, 513715), (70, 410972), (127, 226520), (140, 205486), (254, 113260), (280, 102743), (508, 56630), (635, 45304), (809, 35560), (889, 32360), (1016, 28315), (1270, 22652), (1618, 17780), (1778, 16180), (2540, 11326), (3236, 8890), (3556, 8090), (4045, 7112), (4445, 6472), (5080, 5663)]