399138784

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{66701}}^1$

素因数の和:66739

約数の個数: 48

約数和(自身を含む): 907680816

約数和(自身を除く): 508542032

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 5984, 66701, 133402, 266804, 533608, 733711, 1067216, 1133917, 1467422, 2134432, 2267834, 2934844, 4535668, 5869688, 9071336, 11739376, 12473087, 18142672, 23478752, 24946174, 36285344, 49892348, 99784696, 199569392, 399138784]

約数ペア:

[(1, 399138784), (2, 199569392), (4, 99784696), (8, 49892348), (11, 36285344), (16, 24946174), (17, 23478752), (22, 18142672), (32, 12473087), (34, 11739376), (44, 9071336), (68, 5869688), (88, 4535668), (136, 2934844), (176, 2267834), (187, 2134432), (272, 1467422), (352, 1133917), (374, 1067216), (544, 733711), (748, 533608), (1496, 266804), (2992, 133402), (5984, 66701)]