79428940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{44623}}^1$

素因数の和:44721

約数の個数: 24

約数和(自身を含む): 168678720

約数和(自身を除く): 89249780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 44623, 89246, 178492, 223115, 446230, 892460, 3971447, 7942894, 15885788, 19857235, 39714470, 79428940]

約数ペア:

[(1, 79428940), (2, 39714470), (4, 19857235), (5, 15885788), (10, 7942894), (20, 3971447), (89, 892460), (178, 446230), (356, 223115), (445, 178492), (890, 89246), (1780, 44623)]