204401900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{28789}}^1$

素因数の和:28874

約数の個数: 36

約数和(自身を含む): 449814960

約数和(自身を除く): 245413060

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 28789, 57578, 115156, 143945, 287890, 575780, 719725, 1439450, 2044019, 2878900, 4088038, 8176076, 10220095, 20440190, 40880380, 51100475, 102200950, 204401900]

約数ペア:

[(1, 204401900), (2, 102200950), (4, 51100475), (5, 40880380), (10, 20440190), (20, 10220095), (25, 8176076), (50, 4088038), (71, 2878900), (100, 2044019), (142, 1439450), (284, 719725), (355, 575780), (710, 287890), (1420, 143945), (1775, 115156), (3550, 57578), (7100, 28789)]