20339900

素因数分解:

$2^2\times 5^2\times 7^3\times {\mathrm{593}}^1$

素因数の和:628

約数の個数: 72

約数和(自身を含む): 51559200

約数和(自身を除く): 31219300

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, 593, 686, 700, 980, 1186, 1225, 1372, 1715, 2372, 2450, 2965, 3430, 4151, 4900, 5930, 6860, 8302, 8575, 11860, 14825, 16604, 17150, 20755, 29057, 29650, 34300, 41510, 58114, 59300, 83020, 103775, 116228, 145285, 203399, 207550, 290570, 406798, 415100, 581140, 726425, 813596, 1016995, 1452850, 2033990, 2905700, 4067980, 5084975, 10169950, 20339900]

約数ペア:

[(1, 20339900), (2, 10169950), (4, 5084975), (5, 4067980), (7, 2905700), (10, 2033990), (14, 1452850), (20, 1016995), (25, 813596), (28, 726425), (35, 581140), (49, 415100), (50, 406798), (70, 290570), (98, 207550), (100, 203399), (140, 145285), (175, 116228), (196, 103775), (245, 83020), (343, 59300), (350, 58114), (490, 41510), (593, 34300), (686, 29650), (700, 29057), (980, 20755), (1186, 17150), (1225, 16604), (1372, 14825), (1715, 11860), (2372, 8575), (2450, 8302), (2965, 6860), (3430, 5930), (4151, 4900)]