421070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 32

約数和(自身を含む): 846720

約数和(自身を除く): 425650

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 79, 82, 130, 158, 205, 395, 410, 533, 790, 1027, 1066, 2054, 2665, 3239, 5135, 5330, 6478, 10270, 16195, 32390, 42107, 84214, 210535, 421070]

約数ペア:

[(1, 421070), (2, 210535), (5, 84214), (10, 42107), (13, 32390), (26, 16195), (41, 10270), (65, 6478), (79, 5330), (82, 5135), (130, 3239), (158, 2665), (205, 2054), (395, 1066), (410, 1027), (533, 790)]