256298970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{2551}}^1$

素因数の和:2775

約数の個数: 64

約数和(自身を含む): 654863616

約数和(自身を除く): 398564646

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 197, 255, 394, 510, 591, 985, 1182, 1970, 2551, 2955, 3349, 5102, 5910, 6698, 7653, 10047, 12755, 15306, 16745, 20094, 25510, 33490, 38265, 43367, 50235, 76530, 86734, 100470, 130101, 216835, 260202, 433670, 502547, 650505, 1005094, 1301010, 1507641, 2512735, 3015282, 5025470, 7538205, 8543299, 15076410, 17086598, 25629897, 42716495, 51259794, 85432990, 128149485, 256298970]

約数ペア:

[(1, 256298970), (2, 128149485), (3, 85432990), (5, 51259794), (6, 42716495), (10, 25629897), (15, 17086598), (17, 15076410), (30, 8543299), (34, 7538205), (51, 5025470), (85, 3015282), (102, 2512735), (170, 1507641), (197, 1301010), (255, 1005094), (394, 650505), (510, 502547), (591, 433670), (985, 260202), (1182, 216835), (1970, 130101), (2551, 100470), (2955, 86734), (3349, 76530), (5102, 50235), (5910, 43367), (6698, 38265), (7653, 33490), (10047, 25510), (12755, 20094), (15306, 16745)]