821132500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:395

約数の個数: 120

約数和(自身を含む): 1928757600

約数和(自身を除く): 1107625100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 59, 76, 95, 100, 118, 125, 190, 236, 250, 293, 295, 380, 475, 500, 586, 590, 625, 950, 1121, 1172, 1180, 1250, 1465, 1475, 1900, 2242, 2375, 2500, 2930, 2950, 4484, 4750, 5567, 5605, 5860, 5900, 7325, 7375, 9500, 11134, 11210, 11875, 14650, 14750, 17287, 22268, 22420, 23750, 27835, 28025, 29300, 29500, 34574, 36625, 36875, 47500, 55670, 56050, 69148, 73250, 73750, 86435, 111340, 112100, 139175, 140125, 146500, 147500, 172870, 183125, 278350, 280250, 328453, 345740, 366250, 432175, 556700, 560500, 656906, 695875, 700625, 732500, 864350, 1313812, 1391750, 1401250, 1642265, 1728700, 2160875, 2783500, 2802500, 3284530, 3479375, 4321750, 6569060, 6958750, 8211325, 8643500, 10804375, 13917500, 16422650, 21608750, 32845300, 41056625, 43217500, 82113250, 164226500, 205283125, 410566250, 821132500]

約数ペア:

[(1, 821132500), (2, 410566250), (4, 205283125), (5, 164226500), (10, 82113250), (19, 43217500), (20, 41056625), (25, 32845300), (38, 21608750), (50, 16422650), (59, 13917500), (76, 10804375), (95, 8643500), (100, 8211325), (118, 6958750), (125, 6569060), (190, 4321750), (236, 3479375), (250, 3284530), (293, 2802500), (295, 2783500), (380, 2160875), (475, 1728700), (500, 1642265), (586, 1401250), (590, 1391750), (625, 1313812), (950, 864350), (1121, 732500), (1172, 700625), (1180, 695875), (1250, 656906), (1465, 560500), (1475, 556700), (1900, 432175), (2242, 366250), (2375, 345740), (2500, 328453), (2930, 280250), (2950, 278350), (4484, 183125), (4750, 172870), (5567, 147500), (5605, 146500), (5860, 140125), (5900, 139175), (7325, 112100), (7375, 111340), (9500, 86435), (11134, 73750), (11210, 73250), (11875, 69148), (14650, 56050), (14750, 55670), (17287, 47500), (22268, 36875), (22420, 36625), (23750, 34574), (27835, 29500), (28025, 29300)]