289320856

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{487}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 610663680

約数和(自身を除く): 321342824

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 157, 172, 314, 344, 473, 487, 628, 946, 974, 1256, 1727, 1892, 1948, 3454, 3784, 3896, 5357, 6751, 6908, 10714, 13502, 13816, 20941, 21428, 27004, 41882, 42856, 54008, 74261, 76459, 83764, 148522, 152918, 167528, 230351, 297044, 305836, 460702, 594088, 611672, 841049, 921404, 1682098, 1842808, 3287737, 3364196, 6575474, 6728392, 13150948, 26301896, 36165107, 72330214, 144660428, 289320856]

約数ペア:

[(1, 289320856), (2, 144660428), (4, 72330214), (8, 36165107), (11, 26301896), (22, 13150948), (43, 6728392), (44, 6575474), (86, 3364196), (88, 3287737), (157, 1842808), (172, 1682098), (314, 921404), (344, 841049), (473, 611672), (487, 594088), (628, 460702), (946, 305836), (974, 297044), (1256, 230351), (1727, 167528), (1892, 152918), (1948, 148522), (3454, 83764), (3784, 76459), (3896, 74261), (5357, 54008), (6751, 42856), (6908, 41882), (10714, 27004), (13502, 21428), (13816, 20941)]