20848400

素因数分解:

$2^4\times 5^2\times {\mathrm{52121}}^1$

素因数の和:52139

約数の個数: 30

約数和(自身を含む): 50089242

約数和(自身を除く): 29240842

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52121, 104242, 208484, 260605, 416968, 521210, 833936, 1042420, 1303025, 2084840, 2606050, 4169680, 5212100, 10424200, 20848400]

約数ペア:

[(1, 20848400), (2, 10424200), (4, 5212100), (5, 4169680), (8, 2606050), (10, 2084840), (16, 1303025), (20, 1042420), (25, 833936), (40, 521210), (50, 416968), (80, 260605), (100, 208484), (200, 104242), (400, 52121)]