68680000

素因数分解:

$2^6\times 5^4\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:150

約数の個数: 140

約数和(自身を含む): 182107332

約数和(自身を除く): 113427332

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 101, 125, 136, 160, 170, 200, 202, 250, 272, 320, 340, 400, 404, 425, 500, 505, 544, 625, 680, 800, 808, 850, 1000, 1010, 1088, 1250, 1360, 1600, 1616, 1700, 1717, 2000, 2020, 2125, 2500, 2525, 2720, 3232, 3400, 3434, 4000, 4040, 4250, 5000, 5050, 5440, 6464, 6800, 6868, 8000, 8080, 8500, 8585, 10000, 10100, 10625, 12625, 13600, 13736, 16160, 17000, 17170, 20000, 20200, 21250, 25250, 27200, 27472, 32320, 34000, 34340, 40000, 40400, 42500, 42925, 50500, 54944, 63125, 68000, 68680, 80800, 85000, 85850, 101000, 109888, 126250, 136000, 137360, 161600, 170000, 171700, 202000, 214625, 252500, 274720, 340000, 343400, 404000, 429250, 505000, 549440, 680000, 686800, 808000, 858500, 1010000, 1073125, 1373600, 1717000, 2020000, 2146250, 2747200, 3434000, 4040000, 4292500, 6868000, 8585000, 13736000, 17170000, 34340000, 68680000]

約数ペア:

[(1, 68680000), (2, 34340000), (4, 17170000), (5, 13736000), (8, 8585000), (10, 6868000), (16, 4292500), (17, 4040000), (20, 3434000), (25, 2747200), (32, 2146250), (34, 2020000), (40, 1717000), (50, 1373600), (64, 1073125), (68, 1010000), (80, 858500), (85, 808000), (100, 686800), (101, 680000), (125, 549440), (136, 505000), (160, 429250), (170, 404000), (200, 343400), (202, 340000), (250, 274720), (272, 252500), (320, 214625), (340, 202000), (400, 171700), (404, 170000), (425, 161600), (500, 137360), (505, 136000), (544, 126250), (625, 109888), (680, 101000), (800, 85850), (808, 85000), (850, 80800), (1000, 68680), (1010, 68000), (1088, 63125), (1250, 54944), (1360, 50500), (1600, 42925), (1616, 42500), (1700, 40400), (1717, 40000), (2000, 34340), (2020, 34000), (2125, 32320), (2500, 27472), (2525, 27200), (2720, 25250), (3232, 21250), (3400, 20200), (3434, 20000), (4000, 17170), (4040, 17000), (4250, 16160), (5000, 13736), (5050, 13600), (5440, 12625), (6464, 10625), (6800, 10100), (6868, 10000), (8000, 8585), (8080, 8500)]