72719738

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12889}}^1$

素因数の和:12942

約数の個数: 32

約数和(自身を含む): 138593280

約数和(自身を除く): 65873542

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 5642, 12889, 25778, 90223, 167557, 180446, 335114, 399559, 799118, 1172899, 2345798, 2796913, 5194267, 5593826, 10388534, 36359869, 72719738]

約数ペア:

[(1, 72719738), (2, 36359869), (7, 10388534), (13, 5593826), (14, 5194267), (26, 2796913), (31, 2345798), (62, 1172899), (91, 799118), (182, 399559), (217, 335114), (403, 180446), (434, 167557), (806, 90223), (2821, 25778), (5642, 12889)]