281931440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{2089}}^1$

素因数の和:2350

約数の個数: 80

約数和(自身を含む): 752600640

約数和(自身を除く): 470669200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 241, 280, 482, 560, 964, 1205, 1687, 1928, 2089, 2410, 3374, 3856, 4178, 4820, 6748, 8356, 8435, 9640, 10445, 13496, 14623, 16712, 16870, 19280, 20890, 26992, 29246, 33424, 33740, 41780, 58492, 67480, 73115, 83560, 116984, 134960, 146230, 167120, 233968, 292460, 503449, 584920, 1006898, 1169840, 2013796, 2517245, 3524143, 4027592, 5034490, 7048286, 8055184, 10068980, 14096572, 17620715, 20137960, 28193144, 35241430, 40275920, 56386288, 70482860, 140965720, 281931440]

約数ペア:

[(1, 281931440), (2, 140965720), (4, 70482860), (5, 56386288), (7, 40275920), (8, 35241430), (10, 28193144), (14, 20137960), (16, 17620715), (20, 14096572), (28, 10068980), (35, 8055184), (40, 7048286), (56, 5034490), (70, 4027592), (80, 3524143), (112, 2517245), (140, 2013796), (241, 1169840), (280, 1006898), (482, 584920), (560, 503449), (964, 292460), (1205, 233968), (1687, 167120), (1928, 146230), (2089, 134960), (2410, 116984), (3374, 83560), (3856, 73115), (4178, 67480), (4820, 58492), (6748, 41780), (8356, 33740), (8435, 33424), (9640, 29246), (10445, 26992), (13496, 20890), (14623, 19280), (16712, 16870)]