399982492

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{156979}}^1$

素因数の和:157010

約数の個数: 36

約数和(自身を含む): 876890280

約数和(自身を除く): 476907788

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 156979, 313958, 627916, 1098853, 2040727, 2197706, 4081454, 4395412, 7691971, 8162908, 14285089, 15383942, 28570178, 30767884, 57140356, 99995623, 199991246, 399982492]

約数ペア:

[(1, 399982492), (2, 199991246), (4, 99995623), (7, 57140356), (13, 30767884), (14, 28570178), (26, 15383942), (28, 14285089), (49, 8162908), (52, 7691971), (91, 4395412), (98, 4081454), (182, 2197706), (196, 2040727), (364, 1098853), (637, 627916), (1274, 313958), (2548, 156979)]