128840260

素因数分解:

$2^2\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{3023}}^1$

素因数の和:5163

約数の個数: 24

約数和(自身を含む): 270781056

約数和(自身を除く): 141940796

約数列:

[1, 2, 4, 5, 10, 20, 2131, 3023, 4262, 6046, 8524, 10655, 12092, 15115, 21310, 30230, 42620, 60460, 6442013, 12884026, 25768052, 32210065, 64420130, 128840260]

約数ペア:

[(1, 128840260), (2, 64420130), (4, 32210065), (5, 25768052), (10, 12884026), (20, 6442013), (2131, 60460), (3023, 42620), (4262, 30230), (6046, 21310), (8524, 15115), (10655, 12092)]