20869448

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 43929600

約数和(自身を除く): 23060152

約数列:

[1, 2, 4, 8, 19, 31, 38, 43, 62, 76, 86, 103, 124, 152, 172, 206, 248, 344, 412, 589, 817, 824, 1178, 1333, 1634, 1957, 2356, 2666, 3193, 3268, 3914, 4429, 4712, 5332, 6386, 6536, 7828, 8858, 10664, 12772, 15656, 17716, 25327, 25544, 35432, 50654, 60667, 84151, 101308, 121334, 137299, 168302, 202616, 242668, 274598, 336604, 485336, 549196, 673208, 1098392, 2608681, 5217362, 10434724, 20869448]

約数ペア:

[(1, 20869448), (2, 10434724), (4, 5217362), (8, 2608681), (19, 1098392), (31, 673208), (38, 549196), (43, 485336), (62, 336604), (76, 274598), (86, 242668), (103, 202616), (124, 168302), (152, 137299), (172, 121334), (206, 101308), (248, 84151), (344, 60667), (412, 50654), (589, 35432), (817, 25544), (824, 25327), (1178, 17716), (1333, 15656), (1634, 12772), (1957, 10664), (2356, 8858), (2666, 7828), (3193, 6536), (3268, 6386), (3914, 5332), (4429, 4712)]