1388394425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{967}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 1970445312

約数和(自身を除く): 582050887

約数列:

[1, 5, 11, 23, 25, 55, 115, 227, 253, 275, 575, 967, 1135, 1265, 2497, 4835, 5221, 5675, 6325, 10637, 12485, 22241, 24175, 26105, 53185, 57431, 62425, 111205, 130525, 219509, 244651, 265925, 287155, 556025, 1097545, 1223255, 1435775, 2414599, 5048707, 5487725, 6116275, 12072995, 25243535, 55535777, 60364975, 126217675, 277678885, 1388394425]

約数ペア:

[(1, 1388394425), (5, 277678885), (11, 126217675), (23, 60364975), (25, 55535777), (55, 25243535), (115, 12072995), (227, 6116275), (253, 5487725), (275, 5048707), (575, 2414599), (967, 1435775), (1135, 1223255), (1265, 1097545), (2497, 556025), (4835, 287155), (5221, 265925), (5675, 244651), (6325, 219509), (10637, 130525), (12485, 111205), (22241, 62425), (24175, 57431), (26105, 53185)]