257994540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{75437}}^1$

素因数の和:75471

約数の個数: 72

約数和(自身を含む): 823782960

約数和(自身を除く): 565788420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 75437, 150874, 226311, 301748, 377185, 452622, 678933, 754370, 905244, 1131555, 1357866, 1433303, 1508740, 2263110, 2715732, 2866606, 3394665, 4299909, 4526220, 5733212, 6789330, 7166515, 8599818, 12899727, 13578660, 14333030, 17199636, 21499545, 25799454, 28666060, 42999090, 51598908, 64498635, 85998180, 128997270, 257994540]

約数ペア:

[(1, 257994540), (2, 128997270), (3, 85998180), (4, 64498635), (5, 51598908), (6, 42999090), (9, 28666060), (10, 25799454), (12, 21499545), (15, 17199636), (18, 14333030), (19, 13578660), (20, 12899727), (30, 8599818), (36, 7166515), (38, 6789330), (45, 5733212), (57, 4526220), (60, 4299909), (76, 3394665), (90, 2866606), (95, 2715732), (114, 2263110), (171, 1508740), (180, 1433303), (190, 1357866), (228, 1131555), (285, 905244), (342, 754370), (380, 678933), (570, 452622), (684, 377185), (855, 301748), (1140, 226311), (1710, 150874), (3420, 75437)]