281222080

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28349}}^1$

素因数の和:28397

約数の個数: 56

約数和(自身を含む): 691286400

約数和(自身を除く): 410064320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 28349, 56698, 113396, 141745, 226792, 283490, 453584, 566980, 878819, 907168, 1133960, 1757638, 1814336, 2267920, 3515276, 4394095, 4535840, 7030552, 8788190, 9071680, 14061104, 17576380, 28122208, 35152760, 56244416, 70305520, 140611040, 281222080]

約数ペア:

[(1, 281222080), (2, 140611040), (4, 70305520), (5, 56244416), (8, 35152760), (10, 28122208), (16, 17576380), (20, 14061104), (31, 9071680), (32, 8788190), (40, 7030552), (62, 4535840), (64, 4394095), (80, 3515276), (124, 2267920), (155, 1814336), (160, 1757638), (248, 1133960), (310, 907168), (320, 878819), (496, 566980), (620, 453584), (992, 283490), (1240, 226792), (1984, 141745), (2480, 113396), (4960, 56698), (9920, 28349)]