28081690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{30859}}^1$

素因数の和:30886

約数の個数: 32

約数和(自身を含む): 62213760

約数和(自身を除く): 34132070

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 30859, 61718, 154295, 216013, 308590, 401167, 432026, 802334, 1080065, 2005835, 2160130, 2808169, 4011670, 5616338, 14040845, 28081690]

約数ペア:

[(1, 28081690), (2, 14040845), (5, 5616338), (7, 4011670), (10, 2808169), (13, 2160130), (14, 2005835), (26, 1080065), (35, 802334), (65, 432026), (70, 401167), (91, 308590), (130, 216013), (182, 154295), (455, 61718), (910, 30859)]