213293620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{1481}}^1$

素因数の和:1888

約数の個数: 48

約数和(自身を含む): 473054400

約数和(自身を除く): 259760780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 379, 380, 758, 1481, 1516, 1895, 2962, 3790, 5924, 7201, 7405, 7580, 14402, 14810, 28139, 28804, 29620, 36005, 56278, 72010, 112556, 140695, 144020, 281390, 561299, 562780, 1122598, 2245196, 2806495, 5612990, 10664681, 11225980, 21329362, 42658724, 53323405, 106646810, 213293620]

約数ペア:

[(1, 213293620), (2, 106646810), (4, 53323405), (5, 42658724), (10, 21329362), (19, 11225980), (20, 10664681), (38, 5612990), (76, 2806495), (95, 2245196), (190, 1122598), (379, 562780), (380, 561299), (758, 281390), (1481, 144020), (1516, 140695), (1895, 112556), (2962, 72010), (3790, 56278), (5924, 36005), (7201, 29620), (7405, 28804), (7580, 28139), (14402, 14810)]