981890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1$

素因数の和:123

約数の個数: 48

約数和(自身を含む): 2213568

約数和(自身を除く): 1231678

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 83, 91, 130, 166, 169, 182, 338, 415, 455, 581, 830, 845, 910, 1079, 1162, 1183, 1690, 2158, 2366, 2905, 5395, 5810, 5915, 7553, 10790, 11830, 14027, 15106, 28054, 37765, 70135, 75530, 98189, 140270, 196378, 490945, 981890]

約数ペア:

[(1, 981890), (2, 490945), (5, 196378), (7, 140270), (10, 98189), (13, 75530), (14, 70135), (26, 37765), (35, 28054), (65, 15106), (70, 14027), (83, 11830), (91, 10790), (130, 7553), (166, 5915), (169, 5810), (182, 5395), (338, 2905), (415, 2366), (455, 2158), (581, 1690), (830, 1183), (845, 1162), (910, 1079)]