81666256

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{38377}}^1$

素因数の和:38411

約数の個数: 40

約数和(自身を含む): 190354880

約数和(自身を除く): 108688624

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 38377, 76754, 153508, 268639, 307016, 537278, 614032, 729163, 1074556, 1458326, 2149112, 2916652, 4298224, 5104141, 5833304, 10208282, 11666608, 20416564, 40833128, 81666256]

約数ペア:

[(1, 81666256), (2, 40833128), (4, 20416564), (7, 11666608), (8, 10208282), (14, 5833304), (16, 5104141), (19, 4298224), (28, 2916652), (38, 2149112), (56, 1458326), (76, 1074556), (112, 729163), (133, 614032), (152, 537278), (266, 307016), (304, 268639), (532, 153508), (1064, 76754), (2128, 38377)]