257862640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{1327}}^1$

素因数の和:1694

約数の個数: 80

約数和(自身を含む): 687670272

約数和(自身を除く): 429807632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 347, 560, 694, 1327, 1388, 1735, 2429, 2654, 2776, 3470, 4858, 5308, 5552, 6635, 6940, 9289, 9716, 10616, 12145, 13270, 13880, 18578, 19432, 21232, 24290, 26540, 27760, 37156, 38864, 46445, 48580, 53080, 74312, 92890, 97160, 106160, 148624, 185780, 194320, 371560, 460469, 743120, 920938, 1841876, 2302345, 3223283, 3683752, 4604690, 6446566, 7367504, 9209380, 12893132, 16116415, 18418760, 25786264, 32232830, 36837520, 51572528, 64465660, 128931320, 257862640]

約数ペア:

[(1, 257862640), (2, 128931320), (4, 64465660), (5, 51572528), (7, 36837520), (8, 32232830), (10, 25786264), (14, 18418760), (16, 16116415), (20, 12893132), (28, 9209380), (35, 7367504), (40, 6446566), (56, 4604690), (70, 3683752), (80, 3223283), (112, 2302345), (140, 1841876), (280, 920938), (347, 743120), (560, 460469), (694, 371560), (1327, 194320), (1388, 185780), (1735, 148624), (2429, 106160), (2654, 97160), (2776, 92890), (3470, 74312), (4858, 53080), (5308, 48580), (5552, 46445), (6635, 38864), (6940, 37156), (9289, 27760), (9716, 26540), (10616, 24290), (12145, 21232), (13270, 19432), (13880, 18578)]