68789000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:376

約数の個数: 128

約数和(自身を含む): 190494720

約数和(自身を除く): 121705720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 100, 124, 125, 140, 155, 175, 200, 217, 248, 250, 280, 310, 317, 350, 434, 500, 620, 634, 700, 775, 868, 875, 1000, 1085, 1240, 1268, 1400, 1550, 1585, 1736, 1750, 2170, 2219, 2536, 3100, 3170, 3500, 3875, 4340, 4438, 5425, 6200, 6340, 7000, 7750, 7925, 8680, 8876, 9827, 10850, 11095, 12680, 15500, 15850, 17752, 19654, 21700, 22190, 27125, 31000, 31700, 39308, 39625, 43400, 44380, 49135, 54250, 55475, 63400, 68789, 78616, 79250, 88760, 98270, 108500, 110950, 137578, 158500, 196540, 217000, 221900, 245675, 275156, 277375, 317000, 343945, 393080, 443800, 491350, 550312, 554750, 687890, 982700, 1109500, 1228375, 1375780, 1719725, 1965400, 2219000, 2456750, 2751560, 3439450, 4913500, 6878900, 8598625, 9827000, 13757800, 17197250, 34394500, 68789000]

約数ペア:

[(1, 68789000), (2, 34394500), (4, 17197250), (5, 13757800), (7, 9827000), (8, 8598625), (10, 6878900), (14, 4913500), (20, 3439450), (25, 2751560), (28, 2456750), (31, 2219000), (35, 1965400), (40, 1719725), (50, 1375780), (56, 1228375), (62, 1109500), (70, 982700), (100, 687890), (124, 554750), (125, 550312), (140, 491350), (155, 443800), (175, 393080), (200, 343945), (217, 317000), (248, 277375), (250, 275156), (280, 245675), (310, 221900), (317, 217000), (350, 196540), (434, 158500), (500, 137578), (620, 110950), (634, 108500), (700, 98270), (775, 88760), (868, 79250), (875, 78616), (1000, 68789), (1085, 63400), (1240, 55475), (1268, 54250), (1400, 49135), (1550, 44380), (1585, 43400), (1736, 39625), (1750, 39308), (2170, 31700), (2219, 31000), (2536, 27125), (3100, 22190), (3170, 21700), (3500, 19654), (3875, 17752), (4340, 15850), (4438, 15500), (5425, 12680), (6200, 11095), (6340, 10850), (7000, 9827), (7750, 8876), (7925, 8680)]