28994440

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4447}}^1$

素因数の和:4621

約数の個数: 32

約数和(自身を含む): 65652480

約数和(自身を除く): 36658040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 4447, 6520, 8894, 17788, 22235, 35576, 44470, 88940, 177880, 724861, 1449722, 2899444, 3624305, 5798888, 7248610, 14497220, 28994440]

約数ペア:

[(1, 28994440), (2, 14497220), (4, 7248610), (5, 5798888), (8, 3624305), (10, 2899444), (20, 1449722), (40, 724861), (163, 177880), (326, 88940), (652, 44470), (815, 35576), (1304, 22235), (1630, 17788), (3260, 8894), (4447, 6520)]