11915320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3347}}^1$

素因数の和:3447

約数の個数: 32

約数和(自身を含む): 27118800

約数和(自身を除く): 15203480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3347, 3560, 6694, 13388, 16735, 26776, 33470, 66940, 133880, 297883, 595766, 1191532, 1489415, 2383064, 2978830, 5957660, 11915320]

約数ペア:

[(1, 11915320), (2, 5957660), (4, 2978830), (5, 2383064), (8, 1489415), (10, 1191532), (20, 595766), (40, 297883), (89, 133880), (178, 66940), (356, 33470), (445, 26776), (712, 16735), (890, 13388), (1780, 6694), (3347, 3560)]