280538388

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1811}}^1$

素因数の和:2165

約数の個数: 72

約数和(自身を含む): 766418016

約数和(自身を除く): 485879628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 331, 468, 662, 993, 1324, 1811, 1986, 2979, 3622, 3972, 4303, 5433, 5958, 7244, 8606, 10866, 11916, 12909, 16299, 17212, 21732, 23543, 25818, 32598, 38727, 47086, 51636, 65196, 70629, 77454, 94172, 141258, 154908, 211887, 282516, 423774, 599441, 847548, 1198882, 1798323, 2397764, 3596646, 5394969, 7193292, 7792733, 10789938, 15585466, 21579876, 23378199, 31170932, 46756398, 70134597, 93512796, 140269194, 280538388]

約数ペア:

[(1, 280538388), (2, 140269194), (3, 93512796), (4, 70134597), (6, 46756398), (9, 31170932), (12, 23378199), (13, 21579876), (18, 15585466), (26, 10789938), (36, 7792733), (39, 7193292), (52, 5394969), (78, 3596646), (117, 2397764), (156, 1798323), (234, 1198882), (331, 847548), (468, 599441), (662, 423774), (993, 282516), (1324, 211887), (1811, 154908), (1986, 141258), (2979, 94172), (3622, 77454), (3972, 70629), (4303, 65196), (5433, 51636), (5958, 47086), (7244, 38727), (8606, 32598), (10866, 25818), (11916, 23543), (12909, 21732), (16299, 17212)]