28779716

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 63174720

約数和(自身を除く): 34395004

約数列:

[1, 2, 4, 7, 14, 23, 28, 29, 46, 58, 67, 92, 116, 134, 161, 203, 268, 322, 406, 469, 529, 644, 667, 812, 938, 1058, 1334, 1541, 1876, 1943, 2116, 2668, 3082, 3703, 3886, 4669, 6164, 7406, 7772, 9338, 10787, 13601, 14812, 15341, 18676, 21574, 27202, 30682, 35443, 43148, 44689, 54404, 61364, 70886, 89378, 107387, 141772, 178756, 214774, 248101, 312823, 429548, 496202, 625646, 992404, 1027847, 1251292, 2055694, 4111388, 7194929, 14389858, 28779716]

約数ペア:

[(1, 28779716), (2, 14389858), (4, 7194929), (7, 4111388), (14, 2055694), (23, 1251292), (28, 1027847), (29, 992404), (46, 625646), (58, 496202), (67, 429548), (92, 312823), (116, 248101), (134, 214774), (161, 178756), (203, 141772), (268, 107387), (322, 89378), (406, 70886), (469, 61364), (529, 54404), (644, 44689), (667, 43148), (812, 35443), (938, 30682), (1058, 27202), (1334, 21574), (1541, 18676), (1876, 15341), (1943, 14812), (2116, 13601), (2668, 10787), (3082, 9338), (3703, 7772), (3886, 7406), (4669, 6164)]