640594728

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{468271}}^1$

素因数の和:468302

約数の個数: 48

約数和(自身を含む): 1826260800

約数和(自身を除く): 1185666072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 468271, 936542, 1404813, 1873084, 2809626, 3746168, 4214439, 5619252, 8428878, 8897149, 11238504, 16857756, 17794298, 26691447, 33715512, 35588596, 53382894, 71177192, 80074341, 106765788, 160148682, 213531576, 320297364, 640594728]

約数ペア:

[(1, 640594728), (2, 320297364), (3, 213531576), (4, 160148682), (6, 106765788), (8, 80074341), (9, 71177192), (12, 53382894), (18, 35588596), (19, 33715512), (24, 26691447), (36, 17794298), (38, 16857756), (57, 11238504), (72, 8897149), (76, 8428878), (114, 5619252), (152, 4214439), (171, 3746168), (228, 2809626), (342, 1873084), (456, 1404813), (684, 936542), (1368, 468271)]