71396220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{169991}}^1$

素因数の和:170010

約数の個数: 48

約数和(自身を含む): 228469248

約数和(自身を除く): 157073028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 169991, 339982, 509973, 679964, 849955, 1019946, 1189937, 1699910, 2039892, 2379874, 2549865, 3399820, 3569811, 4759748, 5099730, 5949685, 7139622, 10199460, 11899370, 14279244, 17849055, 23798740, 35698110, 71396220]

約数ペア:

[(1, 71396220), (2, 35698110), (3, 23798740), (4, 17849055), (5, 14279244), (6, 11899370), (7, 10199460), (10, 7139622), (12, 5949685), (14, 5099730), (15, 4759748), (20, 3569811), (21, 3399820), (28, 2549865), (30, 2379874), (35, 2039892), (42, 1699910), (60, 1189937), (70, 1019946), (84, 849955), (105, 679964), (140, 509973), (210, 339982), (420, 169991)]