20072128

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:261

約数の個数: 56

約数和(自身を含む): 42005504

約数和(自身を除く): 21933376

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 134, 151, 248, 268, 302, 496, 536, 604, 992, 1072, 1208, 1984, 2077, 2144, 2416, 4154, 4288, 4681, 4832, 8308, 9362, 9664, 10117, 16616, 18724, 20234, 33232, 37448, 40468, 66464, 74896, 80936, 132928, 149792, 161872, 299584, 313627, 323744, 627254, 647488, 1254508, 2509016, 5018032, 10036064, 20072128]

約数ペア:

[(1, 20072128), (2, 10036064), (4, 5018032), (8, 2509016), (16, 1254508), (31, 647488), (32, 627254), (62, 323744), (64, 313627), (67, 299584), (124, 161872), (134, 149792), (151, 132928), (248, 80936), (268, 74896), (302, 66464), (496, 40468), (536, 37448), (604, 33232), (992, 20234), (1072, 18724), (1208, 16616), (1984, 10117), (2077, 9664), (2144, 9362), (2416, 8308), (4154, 4832), (4288, 4681)]