30721910

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{34519}}^1$

素因数の和:34615

約数の個数: 16

約数和(自身を含む): 55922400

約数和(自身を除く): 25200490

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 34519, 69038, 172595, 345190, 3072191, 6144382, 15360955, 30721910]

約数ペア:

[(1, 30721910), (2, 15360955), (5, 6144382), (10, 3072191), (89, 345190), (178, 172595), (445, 69038), (890, 34519)]