31293680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{827}}^1$

素因数の和:894

約数の個数: 80

約数和(自身を含む): 81316224

約数和(自身を除く): 50022544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 827, 860, 880, 946, 1654, 1720, 1892, 2365, 3308, 3440, 3784, 4135, 4730, 6616, 7568, 8270, 9097, 9460, 13232, 16540, 18194, 18920, 33080, 35561, 36388, 37840, 45485, 66160, 71122, 72776, 90970, 142244, 145552, 177805, 181940, 284488, 355610, 363880, 391171, 568976, 711220, 727760, 782342, 1422440, 1564684, 1955855, 2844880, 3129368, 3911710, 6258736, 7823420, 15646840, 31293680]

約数ペア:

[(1, 31293680), (2, 15646840), (4, 7823420), (5, 6258736), (8, 3911710), (10, 3129368), (11, 2844880), (16, 1955855), (20, 1564684), (22, 1422440), (40, 782342), (43, 727760), (44, 711220), (55, 568976), (80, 391171), (86, 363880), (88, 355610), (110, 284488), (172, 181940), (176, 177805), (215, 145552), (220, 142244), (344, 90970), (430, 72776), (440, 71122), (473, 66160), (688, 45485), (827, 37840), (860, 36388), (880, 35561), (946, 33080), (1654, 18920), (1720, 18194), (1892, 16540), (2365, 13232), (3308, 9460), (3440, 9097), (3784, 8270), (4135, 7568), (4730, 6616)]