18870670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:349

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 23586290

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 89, 91, 130, 178, 182, 233, 445, 455, 466, 623, 890, 910, 1157, 1165, 1246, 1631, 2314, 2330, 3029, 3115, 3262, 5785, 6058, 6230, 8099, 8155, 11570, 15145, 16198, 16310, 20737, 21203, 30290, 40495, 41474, 42406, 80990, 103685, 106015, 145159, 207370, 212030, 269581, 290318, 539162, 725795, 1347905, 1451590, 1887067, 2695810, 3774134, 9435335, 18870670]

約数ペア:

[(1, 18870670), (2, 9435335), (5, 3774134), (7, 2695810), (10, 1887067), (13, 1451590), (14, 1347905), (26, 725795), (35, 539162), (65, 290318), (70, 269581), (89, 212030), (91, 207370), (130, 145159), (178, 106015), (182, 103685), (233, 80990), (445, 42406), (455, 41474), (466, 40495), (623, 30290), (890, 21203), (910, 20737), (1157, 16310), (1165, 16198), (1246, 15145), (1631, 11570), (2314, 8155), (2330, 8099), (3029, 6230), (3115, 6058), (3262, 5785)]