400607120

素因数分解:

$2^4\times 5^1\times {\mathrm{5007589}}^1$

素因数の和:5007602

約数の個数: 20

約数和(自身を含む): 931411740

約数和(自身を除く): 530804620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5007589, 10015178, 20030356, 25037945, 40060712, 50075890, 80121424, 100151780, 200303560, 400607120]

約数ペア:

[(1, 400607120), (2, 200303560), (4, 100151780), (5, 80121424), (8, 50075890), (10, 40060712), (16, 25037945), (20, 20030356), (40, 10015178), (80, 5007589)]