27299860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 67654440

約数和(自身を除く): 40354580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 89, 98, 140, 178, 196, 245, 313, 356, 445, 490, 623, 626, 890, 980, 1246, 1252, 1565, 1780, 2191, 2492, 3115, 3130, 4361, 4382, 6230, 6260, 8722, 8764, 10955, 12460, 15337, 17444, 21805, 21910, 27857, 30674, 43610, 43820, 55714, 61348, 76685, 87220, 111428, 139285, 153370, 194999, 278570, 306740, 389998, 557140, 779996, 974995, 1364993, 1949990, 2729986, 3899980, 5459972, 6824965, 13649930, 27299860]

約数ペア:

[(1, 27299860), (2, 13649930), (4, 6824965), (5, 5459972), (7, 3899980), (10, 2729986), (14, 1949990), (20, 1364993), (28, 974995), (35, 779996), (49, 557140), (70, 389998), (89, 306740), (98, 278570), (140, 194999), (178, 153370), (196, 139285), (245, 111428), (313, 87220), (356, 76685), (445, 61348), (490, 55714), (623, 43820), (626, 43610), (890, 30674), (980, 27857), (1246, 21910), (1252, 21805), (1565, 17444), (1780, 15337), (2191, 12460), (2492, 10955), (3115, 8764), (3130, 8722), (4361, 6260), (4382, 6230)]