25384580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1097}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 58106160

約数和(自身を除く): 32721580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1097, 1157, 1780, 2194, 2314, 4388, 4628, 5485, 5785, 10970, 11570, 14261, 21940, 23140, 28522, 57044, 71305, 97633, 142610, 195266, 285220, 390532, 488165, 976330, 1269229, 1952660, 2538458, 5076916, 6346145, 12692290, 25384580]

約数ペア:

[(1, 25384580), (2, 12692290), (4, 6346145), (5, 5076916), (10, 2538458), (13, 1952660), (20, 1269229), (26, 976330), (52, 488165), (65, 390532), (89, 285220), (130, 195266), (178, 142610), (260, 97633), (356, 71305), (445, 57044), (890, 28522), (1097, 23140), (1157, 21940), (1780, 14261), (2194, 11570), (2314, 10970), (4388, 5785), (4628, 5485)]