416220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{991}}^1$

素因数の和:1010

約数の個数: 48

約数和(自身を含む): 1333248

約数和(自身を除く): 917028

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, 991, 1982, 2973, 3964, 4955, 5946, 6937, 9910, 11892, 13874, 14865, 19820, 20811, 27748, 29730, 34685, 41622, 59460, 69370, 83244, 104055, 138740, 208110, 416220]

約数ペア:

[(1, 416220), (2, 208110), (3, 138740), (4, 104055), (5, 83244), (6, 69370), (7, 59460), (10, 41622), (12, 34685), (14, 29730), (15, 27748), (20, 20811), (21, 19820), (28, 14865), (30, 13874), (35, 11892), (42, 9910), (60, 6937), (70, 5946), (84, 4955), (105, 3964), (140, 2973), (210, 1982), (420, 991)]