20405550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:258

約数の個数: 96

約数和(自身を含む): 56246400

約数和(自身を除く): 35840850

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 83, 110, 149, 150, 165, 166, 249, 275, 298, 330, 415, 447, 498, 550, 745, 825, 830, 894, 913, 1245, 1490, 1639, 1650, 1826, 2075, 2235, 2490, 2739, 3278, 3725, 4150, 4470, 4565, 4917, 5478, 6225, 7450, 8195, 9130, 9834, 11175, 12367, 12450, 13695, 16390, 22350, 22825, 24585, 24734, 27390, 37101, 40975, 45650, 49170, 61835, 68475, 74202, 81950, 122925, 123670, 136037, 136950, 185505, 245850, 272074, 309175, 371010, 408111, 618350, 680185, 816222, 927525, 1360370, 1855050, 2040555, 3400925, 4081110, 6801850, 10202775, 20405550]

約数ペア:

[(1, 20405550), (2, 10202775), (3, 6801850), (5, 4081110), (6, 3400925), (10, 2040555), (11, 1855050), (15, 1360370), (22, 927525), (25, 816222), (30, 680185), (33, 618350), (50, 408111), (55, 371010), (66, 309175), (75, 272074), (83, 245850), (110, 185505), (149, 136950), (150, 136037), (165, 123670), (166, 122925), (249, 81950), (275, 74202), (298, 68475), (330, 61835), (415, 49170), (447, 45650), (498, 40975), (550, 37101), (745, 27390), (825, 24734), (830, 24585), (894, 22825), (913, 22350), (1245, 16390), (1490, 13695), (1639, 12450), (1650, 12367), (1826, 11175), (2075, 9834), (2235, 9130), (2490, 8195), (2739, 7450), (3278, 6225), (3725, 5478), (4150, 4917), (4470, 4565)]