71151920

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{2593}}^1$

素因数の和:2627

約数の個数: 80

約数和(自身を含む): 192993600

約数和(自身を除く): 121841680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2593, 2744, 3430, 3920, 5186, 5488, 6860, 10372, 12965, 13720, 18151, 20744, 25930, 27440, 36302, 41488, 51860, 72604, 90755, 103720, 127057, 145208, 181510, 207440, 254114, 290416, 363020, 508228, 635285, 726040, 889399, 1016456, 1270570, 1452080, 1778798, 2032912, 2541140, 3557596, 4446995, 5082280, 7115192, 8893990, 10164560, 14230384, 17787980, 35575960, 71151920]

約数ペア:

[(1, 71151920), (2, 35575960), (4, 17787980), (5, 14230384), (7, 10164560), (8, 8893990), (10, 7115192), (14, 5082280), (16, 4446995), (20, 3557596), (28, 2541140), (35, 2032912), (40, 1778798), (49, 1452080), (56, 1270570), (70, 1016456), (80, 889399), (98, 726040), (112, 635285), (140, 508228), (196, 363020), (245, 290416), (280, 254114), (343, 207440), (392, 181510), (490, 145208), (560, 127057), (686, 103720), (784, 90755), (980, 72604), (1372, 51860), (1715, 41488), (1960, 36302), (2593, 27440), (2744, 25930), (3430, 20744), (3920, 18151), (5186, 13720), (5488, 12965), (6860, 10372)]