1388897872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{198641}}^1$

素因数の和:198691

約数の個数: 40

約数和(自身を含む): 2955792960

約数和(自身を除く): 1566895088

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 3496, 6992, 198641, 397282, 794564, 1589128, 3178256, 3774179, 4568743, 7548358, 9137486, 15096716, 18274972, 30193432, 36549944, 60386864, 73099888, 86806117, 173612234, 347224468, 694448936, 1388897872]

約数ペア:

[(1, 1388897872), (2, 694448936), (4, 347224468), (8, 173612234), (16, 86806117), (19, 73099888), (23, 60386864), (38, 36549944), (46, 30193432), (76, 18274972), (92, 15096716), (152, 9137486), (184, 7548358), (304, 4568743), (368, 3774179), (437, 3178256), (874, 1589128), (1748, 794564), (3496, 397282), (6992, 198641)]