2100920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{991}}^1$

素因数の和:1055

約数の個数: 32

約数和(自身を含む): 4821120

約数和(自身を除く): 2720200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 991, 1060, 1982, 2120, 3964, 4955, 7928, 9910, 19820, 39640, 52523, 105046, 210092, 262615, 420184, 525230, 1050460, 2100920]

約数ペア:

[(1, 2100920), (2, 1050460), (4, 525230), (5, 420184), (8, 262615), (10, 210092), (20, 105046), (40, 52523), (53, 39640), (106, 19820), (212, 9910), (265, 7928), (424, 4955), (530, 3964), (991, 2120), (1060, 1982)]