278137720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{141907}}^1$

素因数の和:141932

約数の個数: 48

約数和(自身を含む): 727988040

約数和(自身を除く): 449850320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 141907, 283814, 567628, 709535, 993349, 1135256, 1419070, 1986698, 2838140, 3973396, 4966745, 5676280, 6953443, 7946792, 9933490, 13906886, 19866980, 27813772, 34767215, 39733960, 55627544, 69534430, 139068860, 278137720]

約数ペア:

[(1, 278137720), (2, 139068860), (4, 69534430), (5, 55627544), (7, 39733960), (8, 34767215), (10, 27813772), (14, 19866980), (20, 13906886), (28, 9933490), (35, 7946792), (40, 6953443), (49, 5676280), (56, 4966745), (70, 3973396), (98, 2838140), (140, 1986698), (196, 1419070), (245, 1135256), (280, 993349), (392, 709535), (490, 567628), (980, 283814), (1960, 141907)]