81365752

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41177}}^1$

素因数の和:41215

約数の個数: 32

約数和(自身を含む): 172947600

約数和(自身を除く): 91581848

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 41177, 82354, 164708, 329416, 535301, 782363, 1070602, 1564726, 2141204, 3129452, 4282408, 6258904, 10170719, 20341438, 40682876, 81365752]

約数ペア:

[(1, 81365752), (2, 40682876), (4, 20341438), (8, 10170719), (13, 6258904), (19, 4282408), (26, 3129452), (38, 2141204), (52, 1564726), (76, 1070602), (104, 782363), (152, 535301), (247, 329416), (494, 164708), (988, 82354), (1976, 41177)]