278614120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{148199}}^1$

素因数の和:148257

約数の個数: 32

約数和(自身を含む): 640224000

約数和(自身を除く): 361609880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 148199, 296398, 592796, 740995, 1185592, 1481990, 2963980, 5927960, 6965353, 13930706, 27861412, 34826765, 55722824, 69653530, 139307060, 278614120]

約数ペア:

[(1, 278614120), (2, 139307060), (4, 69653530), (5, 55722824), (8, 34826765), (10, 27861412), (20, 13930706), (40, 6965353), (47, 5927960), (94, 2963980), (188, 1481990), (235, 1185592), (376, 740995), (470, 592796), (940, 296398), (1880, 148199)]