81347056

素因数分解:

$2^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 199034880

約数和(自身を除く): 117687824

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 43, 49, 56, 76, 86, 98, 112, 127, 133, 152, 172, 196, 254, 266, 301, 304, 344, 392, 508, 532, 602, 688, 784, 817, 889, 931, 1016, 1064, 1204, 1634, 1778, 1862, 2032, 2107, 2128, 2408, 2413, 3268, 3556, 3724, 4214, 4816, 4826, 5461, 5719, 6223, 6536, 7112, 7448, 8428, 9652, 10922, 11438, 12446, 13072, 14224, 14896, 16856, 16891, 19304, 21844, 22876, 24892, 33712, 33782, 38227, 38608, 40033, 43688, 45752, 49784, 67564, 76454, 80066, 87376, 91504, 99568, 103759, 118237, 135128, 152908, 160132, 207518, 236474, 267589, 270256, 305816, 320264, 415036, 472948, 535178, 611632, 640528, 726313, 830072, 945896, 1070356, 1452626, 1660144, 1891792, 2140712, 2905252, 4281424, 5084191, 5810504, 10168382, 11621008, 20336764, 40673528, 81347056]

約数ペア:

[(1, 81347056), (2, 40673528), (4, 20336764), (7, 11621008), (8, 10168382), (14, 5810504), (16, 5084191), (19, 4281424), (28, 2905252), (38, 2140712), (43, 1891792), (49, 1660144), (56, 1452626), (76, 1070356), (86, 945896), (98, 830072), (112, 726313), (127, 640528), (133, 611632), (152, 535178), (172, 472948), (196, 415036), (254, 320264), (266, 305816), (301, 270256), (304, 267589), (344, 236474), (392, 207518), (508, 160132), (532, 152908), (602, 135128), (688, 118237), (784, 103759), (817, 99568), (889, 91504), (931, 87376), (1016, 80066), (1064, 76454), (1204, 67564), (1634, 49784), (1778, 45752), (1862, 43688), (2032, 40033), (2107, 38608), (2128, 38227), (2408, 33782), (2413, 33712), (3268, 24892), (3556, 22876), (3724, 21844), (4214, 19304), (4816, 16891), (4826, 16856), (5461, 14896), (5719, 14224), (6223, 13072), (6536, 12446), (7112, 11438), (7448, 10922), (8428, 9652)]