278327308

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1\times {\mathrm{509}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 568915200

約数和(自身を除く): 290587892

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 236, 331, 413, 509, 662, 826, 1018, 1324, 1652, 2036, 2317, 3563, 4634, 7126, 9268, 14252, 19529, 30031, 39058, 60062, 78116, 120124, 136703, 168479, 210217, 273406, 336958, 420434, 546812, 673916, 840868, 1179353, 2358706, 4717412, 9940261, 19880522, 39761044, 69581827, 139163654, 278327308]

約数ペア:

[(1, 278327308), (2, 139163654), (4, 69581827), (7, 39761044), (14, 19880522), (28, 9940261), (59, 4717412), (118, 2358706), (236, 1179353), (331, 840868), (413, 673916), (509, 546812), (662, 420434), (826, 336958), (1018, 273406), (1324, 210217), (1652, 168479), (2036, 136703), (2317, 120124), (3563, 78116), (4634, 60062), (7126, 39058), (9268, 30031), (14252, 19529)]