201219920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2137}}^1$

素因数の和:2268

約数の個数: 80

約数和(自身を含む): 515377728

約数和(自身を除く): 314157808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 107, 110, 176, 214, 220, 428, 440, 535, 856, 880, 1070, 1177, 1712, 2137, 2140, 2354, 4274, 4280, 4708, 5885, 8548, 8560, 9416, 10685, 11770, 17096, 18832, 21370, 23507, 23540, 34192, 42740, 47014, 47080, 85480, 94028, 94160, 117535, 170960, 188056, 228659, 235070, 376112, 457318, 470140, 914636, 940280, 1143295, 1829272, 1880560, 2286590, 2515249, 3658544, 4573180, 5030498, 9146360, 10060996, 12576245, 18292720, 20121992, 25152490, 40243984, 50304980, 100609960, 201219920]

約数ペア:

[(1, 201219920), (2, 100609960), (4, 50304980), (5, 40243984), (8, 25152490), (10, 20121992), (11, 18292720), (16, 12576245), (20, 10060996), (22, 9146360), (40, 5030498), (44, 4573180), (55, 3658544), (80, 2515249), (88, 2286590), (107, 1880560), (110, 1829272), (176, 1143295), (214, 940280), (220, 914636), (428, 470140), (440, 457318), (535, 376112), (856, 235070), (880, 228659), (1070, 188056), (1177, 170960), (1712, 117535), (2137, 94160), (2140, 94028), (2354, 85480), (4274, 47080), (4280, 47014), (4708, 42740), (5885, 34192), (8548, 23540), (8560, 23507), (9416, 21370), (10685, 18832), (11770, 17096)]