19971000

素因数分解:

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

素因数の和:351

約数の個数: 192

約数和(自身を含む): 77388480

約数和(自身を除く): 57417480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 50, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 120, 125, 126, 140, 150, 168, 175, 180, 200, 210, 225, 250, 252, 280, 300, 315, 317, 350, 360, 375, 420, 450, 500, 504, 525, 600, 630, 634, 700, 750, 840, 875, 900, 951, 1000, 1050, 1125, 1260, 1268, 1400, 1500, 1575, 1585, 1750, 1800, 1902, 2100, 2219, 2250, 2520, 2536, 2625, 2853, 3000, 3150, 3170, 3500, 3804, 4200, 4438, 4500, 4755, 5250, 5706, 6300, 6340, 6657, 7000, 7608, 7875, 7925, 8876, 9000, 9510, 10500, 11095, 11412, 12600, 12680, 13314, 14265, 15750, 15850, 17752, 19020, 19971, 21000, 22190, 22824, 23775, 26628, 28530, 31500, 31700, 33285, 38040, 39625, 39942, 44380, 47550, 53256, 55475, 57060, 63000, 63400, 66570, 71325, 79250, 79884, 88760, 95100, 99855, 110950, 114120, 118875, 133140, 142650, 158500, 159768, 166425, 190200, 199710, 221900, 237750, 266280, 277375, 285300, 317000, 332850, 356625, 399420, 443800, 475500, 499275, 554750, 570600, 665700, 713250, 798840, 832125, 951000, 998550, 1109500, 1331400, 1426500, 1664250, 1997100, 2219000, 2496375, 2853000, 3328500, 3994200, 4992750, 6657000, 9985500, 19971000]

約数ペア:

[(1, 19971000), (2, 9985500), (3, 6657000), (4, 4992750), (5, 3994200), (6, 3328500), (7, 2853000), (8, 2496375), (9, 2219000), (10, 1997100), (12, 1664250), (14, 1426500), (15, 1331400), (18, 1109500), (20, 998550), (21, 951000), (24, 832125), (25, 798840), (28, 713250), (30, 665700), (35, 570600), (36, 554750), (40, 499275), (42, 475500), (45, 443800), (50, 399420), (56, 356625), (60, 332850), (63, 317000), (70, 285300), (72, 277375), (75, 266280), (84, 237750), (90, 221900), (100, 199710), (105, 190200), (120, 166425), (125, 159768), (126, 158500), (140, 142650), (150, 133140), (168, 118875), (175, 114120), (180, 110950), (200, 99855), (210, 95100), (225, 88760), (250, 79884), (252, 79250), (280, 71325), (300, 66570), (315, 63400), (317, 63000), (350, 57060), (360, 55475), (375, 53256), (420, 47550), (450, 44380), (500, 39942), (504, 39625), (525, 38040), (600, 33285), (630, 31700), (634, 31500), (700, 28530), (750, 26628), (840, 23775), (875, 22824), (900, 22190), (951, 21000), (1000, 19971), (1050, 19020), (1125, 17752), (1260, 15850), (1268, 15750), (1400, 14265), (1500, 13314), (1575, 12680), (1585, 12600), (1750, 11412), (1800, 11095), (1902, 10500), (2100, 9510), (2219, 9000), (2250, 8876), (2520, 7925), (2536, 7875), (2625, 7608), (2853, 7000), (3000, 6657), (3150, 6340), (3170, 6300), (3500, 5706), (3804, 5250), (4200, 4755), (4438, 4500)]