2011961875

素因数分解:

$5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:566

約数の個数: 80

約数和(自身を含む): 3174183936

約数和(自身を除く): 1162222061

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 97, 125, 175, 275, 385, 431, 485, 625, 679, 875, 1067, 1375, 1925, 2155, 2425, 3017, 3395, 4375, 4741, 5335, 6875, 7469, 9625, 10775, 12125, 15085, 16975, 23705, 26675, 33187, 37345, 41807, 48125, 53875, 60625, 75425, 84875, 118525, 133375, 165935, 186725, 209035, 269375, 292649, 377125, 424375, 459877, 592625, 666875, 829675, 933625, 1045175, 1463245, 1885625, 2299385, 2963125, 3219139, 4148375, 4668125, 5225875, 7316225, 11496925, 16095695, 20741875, 26129375, 36581125, 57484625, 80478475, 182905625, 287423125, 402392375, 2011961875]

約数ペア:

[(1, 2011961875), (5, 402392375), (7, 287423125), (11, 182905625), (25, 80478475), (35, 57484625), (55, 36581125), (77, 26129375), (97, 20741875), (125, 16095695), (175, 11496925), (275, 7316225), (385, 5225875), (431, 4668125), (485, 4148375), (625, 3219139), (679, 2963125), (875, 2299385), (1067, 1885625), (1375, 1463245), (1925, 1045175), (2155, 933625), (2425, 829675), (3017, 666875), (3395, 592625), (4375, 459877), (4741, 424375), (5335, 377125), (6875, 292649), (7469, 269375), (9625, 209035), (10775, 186725), (12125, 165935), (15085, 133375), (16975, 118525), (23705, 84875), (26675, 75425), (33187, 60625), (37345, 53875), (41807, 48125)]