681590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 1551312

約数和(自身を除く): 869722

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 107, 130, 182, 214, 245, 455, 490, 535, 637, 749, 910, 1070, 1274, 1391, 1498, 2782, 3185, 3745, 5243, 6370, 6955, 7490, 9737, 10486, 13910, 19474, 26215, 48685, 52430, 68159, 97370, 136318, 340795, 681590]

約数ペア:

[(1, 681590), (2, 340795), (5, 136318), (7, 97370), (10, 68159), (13, 52430), (14, 48685), (26, 26215), (35, 19474), (49, 13910), (65, 10486), (70, 9737), (91, 7490), (98, 6955), (107, 6370), (130, 5243), (182, 3745), (214, 3185), (245, 2782), (455, 1498), (490, 1391), (535, 1274), (637, 1070), (749, 910)]