128971502

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 215136000

約数和(自身を除く): 86164498

約数列:

[1, 2, 11, 22, 89, 178, 199, 331, 398, 662, 979, 1958, 2189, 3641, 4378, 7282, 17711, 29459, 35422, 58918, 65869, 131738, 194821, 324049, 389642, 648098, 724559, 1449118, 5862341, 11724682, 64485751, 128971502]

約数ペア:

[(1, 128971502), (2, 64485751), (11, 11724682), (22, 5862341), (89, 1449118), (178, 724559), (199, 648098), (331, 389642), (398, 324049), (662, 194821), (979, 131738), (1958, 65869), (2189, 58918), (3641, 35422), (4378, 29459), (7282, 17711)]