7970260

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 17498880

約数和(自身を除く): 9528620

約数列:

[1, 2, 4, 5, 10, 20, 47, 61, 94, 122, 139, 188, 235, 244, 278, 305, 470, 556, 610, 695, 940, 1220, 1390, 2780, 2867, 5734, 6533, 8479, 11468, 13066, 14335, 16958, 26132, 28670, 32665, 33916, 42395, 57340, 65330, 84790, 130660, 169580, 398513, 797026, 1594052, 1992565, 3985130, 7970260]

約数ペア:

[(1, 7970260), (2, 3985130), (4, 1992565), (5, 1594052), (10, 797026), (20, 398513), (47, 169580), (61, 130660), (94, 84790), (122, 65330), (139, 57340), (188, 42395), (235, 33916), (244, 32665), (278, 28670), (305, 26132), (470, 16958), (556, 14335), (610, 13066), (695, 11468), (940, 8479), (1220, 6533), (1390, 5734), (2780, 2867)]