400291216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1289}}^1\times {\mathrm{1493}}^1$

素因数の和:2803

約数の個数: 40

約数和(自身を含む): 836430840

約数和(自身を除く): 436139624

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1289, 1493, 2578, 2986, 5156, 5972, 10312, 11944, 16757, 19409, 20624, 23888, 33514, 38818, 67028, 77636, 134056, 155272, 268112, 310544, 1924477, 3848954, 7697908, 15395816, 25018201, 30791632, 50036402, 100072804, 200145608, 400291216]

約数ペア:

[(1, 400291216), (2, 200145608), (4, 100072804), (8, 50036402), (13, 30791632), (16, 25018201), (26, 15395816), (52, 7697908), (104, 3848954), (208, 1924477), (1289, 310544), (1493, 268112), (2578, 155272), (2986, 134056), (5156, 77636), (5972, 67028), (10312, 38818), (11944, 33514), (16757, 23888), (19409, 20624)]