1391787904

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26981}}^1$

素因数の和:27039

約数の個数: 64

約数和(自身を含む): 3082423680

約数和(自身を除く): 1690635776

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 403, 416, 496, 806, 832, 992, 1612, 1664, 1984, 3224, 3968, 6448, 12896, 25792, 26981, 51584, 53962, 107924, 215848, 350753, 431696, 701506, 836411, 863392, 1403012, 1672822, 1726784, 2806024, 3345644, 3453568, 5612048, 6691288, 10873343, 11224096, 13382576, 21746686, 22448192, 26765152, 43493372, 44896384, 53530304, 86986744, 107060608, 173973488, 347946976, 695893952, 1391787904]

約数ペア:

[(1, 1391787904), (2, 695893952), (4, 347946976), (8, 173973488), (13, 107060608), (16, 86986744), (26, 53530304), (31, 44896384), (32, 43493372), (52, 26765152), (62, 22448192), (64, 21746686), (104, 13382576), (124, 11224096), (128, 10873343), (208, 6691288), (248, 5612048), (403, 3453568), (416, 3345644), (496, 2806024), (806, 1726784), (832, 1672822), (992, 1403012), (1612, 863392), (1664, 836411), (1984, 701506), (3224, 431696), (3968, 350753), (6448, 215848), (12896, 107924), (25792, 53962), (26981, 51584)]