209959280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2731}}^1$

素因数の和:2806

約数の個数: 60

約数和(自身を含む): 504594936

約数和(自身を除く): 294635656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1240, 1922, 2480, 2731, 3844, 4805, 5462, 7688, 9610, 10924, 13655, 15376, 19220, 21848, 27310, 38440, 43696, 54620, 76880, 84661, 109240, 169322, 218480, 338644, 423305, 677288, 846610, 1354576, 1693220, 2624491, 3386440, 5248982, 6772880, 10497964, 13122455, 20995928, 26244910, 41991856, 52489820, 104979640, 209959280]

約数ペア:

[(1, 209959280), (2, 104979640), (4, 52489820), (5, 41991856), (8, 26244910), (10, 20995928), (16, 13122455), (20, 10497964), (31, 6772880), (40, 5248982), (62, 3386440), (80, 2624491), (124, 1693220), (155, 1354576), (248, 846610), (310, 677288), (496, 423305), (620, 338644), (961, 218480), (1240, 169322), (1922, 109240), (2480, 84661), (2731, 76880), (3844, 54620), (4805, 43696), (5462, 38440), (7688, 27310), (9610, 21848), (10924, 19220), (13655, 15376)]