80520388

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{311}}^1\times {\mathrm{383}}^1$

素因数の和:724

約数の個数: 36

約数和(自身を含む): 153474048

約数和(自身を除く): 72953660

約数列:

[1, 2, 4, 13, 26, 52, 169, 311, 338, 383, 622, 676, 766, 1244, 1532, 4043, 4979, 8086, 9958, 16172, 19916, 52559, 64727, 105118, 119113, 129454, 210236, 238226, 258908, 476452, 1548469, 3096938, 6193876, 20130097, 40260194, 80520388]

約数ペア:

[(1, 80520388), (2, 40260194), (4, 20130097), (13, 6193876), (26, 3096938), (52, 1548469), (169, 476452), (311, 258908), (338, 238226), (383, 210236), (622, 129454), (676, 119113), (766, 105118), (1244, 64727), (1532, 52559), (4043, 19916), (4979, 16172), (8086, 9958)]