27980290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 57480192

約数和(自身を除く): 29499902

約数列:

[1, 2, 5, 10, 13, 26, 31, 53, 62, 65, 106, 130, 131, 155, 262, 265, 310, 403, 530, 655, 689, 806, 1310, 1378, 1643, 1703, 2015, 3286, 3406, 3445, 4030, 4061, 6890, 6943, 8122, 8215, 8515, 13886, 16430, 17030, 20305, 21359, 34715, 40610, 42718, 52793, 69430, 90259, 105586, 106795, 180518, 213590, 215233, 263965, 430466, 451295, 527930, 902590, 1076165, 2152330, 2798029, 5596058, 13990145, 27980290]

約数ペア:

[(1, 27980290), (2, 13990145), (5, 5596058), (10, 2798029), (13, 2152330), (26, 1076165), (31, 902590), (53, 527930), (62, 451295), (65, 430466), (106, 263965), (130, 215233), (131, 213590), (155, 180518), (262, 106795), (265, 105586), (310, 90259), (403, 69430), (530, 52793), (655, 42718), (689, 40610), (806, 34715), (1310, 21359), (1378, 20305), (1643, 17030), (1703, 16430), (2015, 13886), (3286, 8515), (3406, 8215), (3445, 8122), (4030, 6943), (4061, 6890)]