42720160

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{5449}}^1$

素因数の和:5478

約数の個数: 72

約数和(自身を含む): 117425700

約数和(自身を除く): 74705540

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 5449, 7840, 10898, 21796, 27245, 38143, 43592, 54490, 76286, 87184, 108980, 152572, 174368, 190715, 217960, 267001, 305144, 381430, 435920, 534002, 610288, 762860, 871840, 1068004, 1220576, 1335005, 1525720, 2136008, 2670010, 3051440, 4272016, 5340020, 6102880, 8544032, 10680040, 21360080, 42720160]

約数ペア:

[(1, 42720160), (2, 21360080), (4, 10680040), (5, 8544032), (7, 6102880), (8, 5340020), (10, 4272016), (14, 3051440), (16, 2670010), (20, 2136008), (28, 1525720), (32, 1335005), (35, 1220576), (40, 1068004), (49, 871840), (56, 762860), (70, 610288), (80, 534002), (98, 435920), (112, 381430), (140, 305144), (160, 267001), (196, 217960), (224, 190715), (245, 174368), (280, 152572), (392, 108980), (490, 87184), (560, 76286), (784, 54490), (980, 43592), (1120, 38143), (1568, 27245), (1960, 21796), (3920, 10898), (5449, 7840)]