81372408

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{260809}}^1$

素因数の和:260831

約数の個数: 32

約数和(自身を含む): 219080400

約数和(自身を除く): 137707992

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 260809, 521618, 782427, 1043236, 1564854, 2086472, 3129708, 3390517, 6259416, 6781034, 10171551, 13562068, 20343102, 27124136, 40686204, 81372408]

約数ペア:

[(1, 81372408), (2, 40686204), (3, 27124136), (4, 20343102), (6, 13562068), (8, 10171551), (12, 6781034), (13, 6259416), (24, 3390517), (26, 3129708), (39, 2086472), (52, 1564854), (78, 1043236), (104, 782427), (156, 521618), (312, 260809)]