68565700

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{1999}}^1$

素因数の和:2034

約数の個数: 72

約数和(自身を含む): 173600000

約数和(自身を除く): 105034300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 343, 350, 490, 686, 700, 980, 1225, 1372, 1715, 1999, 2450, 3430, 3998, 4900, 6860, 7996, 8575, 9995, 13993, 17150, 19990, 27986, 34300, 39980, 49975, 55972, 69965, 97951, 99950, 139930, 195902, 199900, 279860, 349825, 391804, 489755, 685657, 699650, 979510, 1371314, 1399300, 1959020, 2448775, 2742628, 3428285, 4897550, 6856570, 9795100, 13713140, 17141425, 34282850, 68565700]

約数ペア:

[(1, 68565700), (2, 34282850), (4, 17141425), (5, 13713140), (7, 9795100), (10, 6856570), (14, 4897550), (20, 3428285), (25, 2742628), (28, 2448775), (35, 1959020), (49, 1399300), (50, 1371314), (70, 979510), (98, 699650), (100, 685657), (140, 489755), (175, 391804), (196, 349825), (245, 279860), (343, 199900), (350, 195902), (490, 139930), (686, 99950), (700, 97951), (980, 69965), (1225, 55972), (1372, 49975), (1715, 39980), (1999, 34300), (2450, 27986), (3430, 19990), (3998, 17150), (4900, 13993), (6860, 9995), (7996, 8575)]