20213305875

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{82799}}^1$

素因数の和:82858

約数の個数: 96

約数和(自身を含む): 42987110400

約数和(自身を除く): 22773804525

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 31, 35, 45, 63, 75, 93, 105, 125, 155, 175, 217, 225, 279, 315, 375, 465, 525, 651, 775, 875, 1085, 1125, 1395, 1575, 1953, 2325, 2625, 3255, 3875, 5425, 6975, 7875, 9765, 11625, 16275, 27125, 34875, 48825, 81375, 82799, 244125, 248397, 413995, 579593, 745191, 1241985, 1738779, 2069975, 2566769, 2897965, 3725955, 5216337, 6209925, 7700307, 8693895, 10349875, 12833845, 14489825, 17967383, 18629775, 23100921, 26081685, 31049625, 38501535, 43469475, 53902149, 64169225, 72449125, 89836915, 93148875, 115504605, 130408425, 161706447, 192507675, 217347375, 269510745, 320846125, 449184575, 577523025, 652042125, 808532235, 962538375, 1347553725, 2245922875, 2887615125, 4042661175, 6737768625, 20213305875]

約数ペア:

[(1, 20213305875), (3, 6737768625), (5, 4042661175), (7, 2887615125), (9, 2245922875), (15, 1347553725), (21, 962538375), (25, 808532235), (31, 652042125), (35, 577523025), (45, 449184575), (63, 320846125), (75, 269510745), (93, 217347375), (105, 192507675), (125, 161706447), (155, 130408425), (175, 115504605), (217, 93148875), (225, 89836915), (279, 72449125), (315, 64169225), (375, 53902149), (465, 43469475), (525, 38501535), (651, 31049625), (775, 26081685), (875, 23100921), (1085, 18629775), (1125, 17967383), (1395, 14489825), (1575, 12833845), (1953, 10349875), (2325, 8693895), (2625, 7700307), (3255, 6209925), (3875, 5216337), (5425, 3725955), (6975, 2897965), (7875, 2566769), (9765, 2069975), (11625, 1738779), (16275, 1241985), (27125, 745191), (34875, 579593), (48825, 413995), (81375, 248397), (82799, 244125)]