51981410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 109372032

約数和(自身を除く): 57390622

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 43, 65, 85, 86, 130, 170, 215, 221, 430, 442, 547, 559, 731, 1094, 1105, 1118, 1462, 2210, 2735, 2795, 3655, 5470, 5590, 7111, 7310, 9299, 9503, 14222, 18598, 19006, 23521, 35555, 46495, 47042, 47515, 71110, 92990, 95030, 117605, 120887, 235210, 241774, 305773, 399857, 604435, 611546, 799714, 1208870, 1528865, 1999285, 3057730, 3998570, 5198141, 10396282, 25990705, 51981410]

約数ペア:

[(1, 51981410), (2, 25990705), (5, 10396282), (10, 5198141), (13, 3998570), (17, 3057730), (26, 1999285), (34, 1528865), (43, 1208870), (65, 799714), (85, 611546), (86, 604435), (130, 399857), (170, 305773), (215, 241774), (221, 235210), (430, 120887), (442, 117605), (547, 95030), (559, 92990), (731, 71110), (1094, 47515), (1105, 47042), (1118, 46495), (1462, 35555), (2210, 23521), (2735, 19006), (2795, 18598), (3655, 14222), (5470, 9503), (5590, 9299), (7111, 7310)]