84768940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{47623}}^1$

素因数の和:47721

約数の個数: 24

約数和(自身を含む): 180018720

約数和(自身を除く): 95249780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 47623, 95246, 190492, 238115, 476230, 952460, 4238447, 8476894, 16953788, 21192235, 42384470, 84768940]

約数ペア:

[(1, 84768940), (2, 42384470), (4, 21192235), (5, 16953788), (10, 8476894), (20, 4238447), (89, 952460), (178, 476230), (356, 238115), (445, 190492), (890, 95246), (1780, 47623)]