19864390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 44706816

約数和(自身を除く): 24842426

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 83, 91, 130, 166, 182, 263, 415, 455, 526, 581, 830, 910, 1079, 1162, 1315, 1841, 2158, 2630, 2905, 3419, 3682, 5395, 5810, 6838, 7553, 9205, 10790, 15106, 17095, 18410, 21829, 23933, 34190, 37765, 43658, 47866, 75530, 109145, 119665, 152803, 218290, 239330, 283777, 305606, 567554, 764015, 1418885, 1528030, 1986439, 2837770, 3972878, 9932195, 19864390]

約数ペア:

[(1, 19864390), (2, 9932195), (5, 3972878), (7, 2837770), (10, 1986439), (13, 1528030), (14, 1418885), (26, 764015), (35, 567554), (65, 305606), (70, 283777), (83, 239330), (91, 218290), (130, 152803), (166, 119665), (182, 109145), (263, 75530), (415, 47866), (455, 43658), (526, 37765), (581, 34190), (830, 23933), (910, 21829), (1079, 18410), (1162, 17095), (1315, 15106), (1841, 10790), (2158, 9205), (2630, 7553), (2905, 6838), (3419, 5810), (3682, 5395)]