128127860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{915199}}^1$

素因数の和:915215

約数の個数: 24

約数和(自身を含む): 307507200

約数和(自身を除く): 179379340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 915199, 1830398, 3660796, 4575995, 6406393, 9151990, 12812786, 18303980, 25625572, 32031965, 64063930, 128127860]

約数ペア:

[(1, 128127860), (2, 64063930), (4, 32031965), (5, 25625572), (7, 18303980), (10, 12812786), (14, 9151990), (20, 6406393), (28, 4575995), (35, 3660796), (70, 1830398), (140, 915199)]