128308864

素因数分解:

$2^7\times {\mathrm{61}}^1\times {\mathrm{16433}}^1$

素因数の和:16508

約数の個数: 32

約数和(自身を含む): 259821540

約数和(自身を除く): 131512676

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 488, 976, 1952, 3904, 7808, 16433, 32866, 65732, 131464, 262928, 525856, 1002413, 1051712, 2004826, 2103424, 4009652, 8019304, 16038608, 32077216, 64154432, 128308864]

約数ペア:

[(1, 128308864), (2, 64154432), (4, 32077216), (8, 16038608), (16, 8019304), (32, 4009652), (61, 2103424), (64, 2004826), (122, 1051712), (128, 1002413), (244, 525856), (488, 262928), (976, 131464), (1952, 65732), (3904, 32866), (7808, 16433)]