65487980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{36791}}^1$

素因数の和:36889

約数の個数: 24

約数和(自身を含む): 139073760

約数和(自身を除く): 73585780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 36791, 73582, 147164, 183955, 367910, 735820, 3274399, 6548798, 13097596, 16371995, 32743990, 65487980]

約数ペア:

[(1, 65487980), (2, 32743990), (4, 16371995), (5, 13097596), (10, 6548798), (20, 3274399), (89, 735820), (178, 367910), (356, 183955), (445, 147164), (890, 73582), (1780, 36791)]