189888980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{558497}}^1$

素因数の和:558523

約数の個数: 24

約数和(自身を含む): 422224488

約数和(自身を除く): 232335508

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 558497, 1116994, 2233988, 2792485, 5584970, 9494449, 11169940, 18988898, 37977796, 47472245, 94944490, 189888980]

約数ペア:

[(1, 189888980), (2, 94944490), (4, 47472245), (5, 37977796), (10, 18988898), (17, 11169940), (20, 9494449), (34, 5584970), (68, 2792485), (85, 2233988), (170, 1116994), (340, 558497)]