21501480280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10970143}}^1$

素因数の和:10970168

約数の個数: 48

約数和(自身を含む): 56276838720

約数和(自身を除く): 34775358440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10970143, 21940286, 43880572, 54850715, 76791001, 87761144, 109701430, 153582002, 219402860, 307164004, 383955005, 438805720, 537537007, 614328008, 767910010, 1075074014, 1535820020, 2150148028, 2687685035, 3071640040, 4300296056, 5375370070, 10750740140, 21501480280]

約数ペア:

[(1, 21501480280), (2, 10750740140), (4, 5375370070), (5, 4300296056), (7, 3071640040), (8, 2687685035), (10, 2150148028), (14, 1535820020), (20, 1075074014), (28, 767910010), (35, 614328008), (40, 537537007), (49, 438805720), (56, 383955005), (70, 307164004), (98, 219402860), (140, 153582002), (196, 109701430), (245, 87761144), (280, 76791001), (392, 54850715), (490, 43880572), (980, 21940286), (1960, 10970143)]