689715

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:161

約数の個数: 40

約数和(自身を含む): 1341648

約数和(自身を除く): 651933

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 131, 135, 195, 351, 393, 405, 585, 655, 1053, 1179, 1703, 1755, 1965, 3537, 5109, 5265, 5895, 8515, 10611, 15327, 17685, 25545, 45981, 53055, 76635, 137943, 229905, 689715]

約数ペア:

[(1, 689715), (3, 229905), (5, 137943), (9, 76635), (13, 53055), (15, 45981), (27, 25545), (39, 17685), (45, 15327), (65, 10611), (81, 8515), (117, 5895), (131, 5265), (135, 5109), (195, 3537), (351, 1965), (393, 1755), (405, 1703), (585, 1179), (655, 1053)]