54987760

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7723}}^1$

素因数の和:7825

約数の個数: 40

約数和(自身を含む): 129299760

約数和(自身を除く): 74312000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 7723, 15446, 30892, 38615, 61784, 77230, 123568, 154460, 308920, 617840, 687347, 1374694, 2749388, 3436735, 5498776, 6873470, 10997552, 13746940, 27493880, 54987760]

約数ペア:

[(1, 54987760), (2, 27493880), (4, 13746940), (5, 10997552), (8, 6873470), (10, 5498776), (16, 3436735), (20, 2749388), (40, 1374694), (80, 687347), (89, 617840), (178, 308920), (356, 154460), (445, 123568), (712, 77230), (890, 61784), (1424, 38615), (1780, 30892), (3560, 15446), (7120, 7723)]