291280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1$

素因数の和:355

約数の個数: 40

約数和(自身を含む): 741024

約数和(自身を除く): 449744

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 331, 440, 662, 880, 1324, 1655, 2648, 3310, 3641, 5296, 6620, 7282, 13240, 14564, 18205, 26480, 29128, 36410, 58256, 72820, 145640, 291280]

約数ペア:

[(1, 291280), (2, 145640), (4, 72820), (5, 58256), (8, 36410), (10, 29128), (11, 26480), (16, 18205), (20, 14564), (22, 13240), (40, 7282), (44, 6620), (55, 5296), (80, 3641), (88, 3310), (110, 2648), (176, 1655), (220, 1324), (331, 880), (440, 662)]