87491240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{50867}}^1$

素因数の和:50921

約数の個数: 32

約数和(自身を含む): 201437280

約数和(自身を除く): 113946040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 50867, 101734, 203468, 254335, 406936, 508670, 1017340, 2034680, 2187281, 4374562, 8749124, 10936405, 17498248, 21872810, 43745620, 87491240]

約数ペア:

[(1, 87491240), (2, 43745620), (4, 21872810), (5, 17498248), (8, 10936405), (10, 8749124), (20, 4374562), (40, 2187281), (43, 2034680), (86, 1017340), (172, 508670), (215, 406936), (344, 254335), (430, 203468), (860, 101734), (1720, 50867)]