406937128

素因数分解:

$2^3\times {\mathrm{13}}^5\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 832624380

約数和(自身を除く): 425687252

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 137, 169, 274, 338, 548, 676, 1096, 1352, 1781, 2197, 3562, 4394, 7124, 8788, 14248, 17576, 23153, 28561, 46306, 57122, 92612, 114244, 185224, 228488, 300989, 371293, 601978, 742586, 1203956, 1485172, 2407912, 2970344, 3912857, 7825714, 15651428, 31302856, 50867141, 101734282, 203468564, 406937128]

約数ペア:

[(1, 406937128), (2, 203468564), (4, 101734282), (8, 50867141), (13, 31302856), (26, 15651428), (52, 7825714), (104, 3912857), (137, 2970344), (169, 2407912), (274, 1485172), (338, 1203956), (548, 742586), (676, 601978), (1096, 371293), (1352, 300989), (1781, 228488), (2197, 185224), (3562, 114244), (4394, 92612), (7124, 57122), (8788, 46306), (14248, 28561), (17576, 23153)]