78354140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{383}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 168956928

約数和(自身を除く): 90602788

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 193, 212, 265, 383, 386, 530, 766, 772, 965, 1060, 1532, 1915, 1930, 3830, 3860, 7660, 10229, 20299, 20458, 40598, 40916, 51145, 73919, 81196, 101495, 102290, 147838, 202990, 204580, 295676, 369595, 405980, 739190, 1478380, 3917707, 7835414, 15670828, 19588535, 39177070, 78354140]

約数ペア:

[(1, 78354140), (2, 39177070), (4, 19588535), (5, 15670828), (10, 7835414), (20, 3917707), (53, 1478380), (106, 739190), (193, 405980), (212, 369595), (265, 295676), (383, 204580), (386, 202990), (530, 147838), (766, 102290), (772, 101495), (965, 81196), (1060, 73919), (1532, 51145), (1915, 40916), (1930, 40598), (3830, 20458), (3860, 20299), (7660, 10229)]