20123961986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{571}}^1\times {\mathrm{4159}}^1$

素因数の和:4974

約数の個数: 32

約数和(自身を含む): 31980748800

約数和(自身を除く): 11856786814

約数列:

[1, 2, 19, 38, 223, 446, 571, 1142, 4159, 4237, 8318, 8474, 10849, 21698, 79021, 127333, 158042, 254666, 927457, 1854914, 2374789, 2419327, 4749578, 4838654, 17621683, 35243366, 45120991, 90241982, 529577947, 1059155894, 10061980993, 20123961986]

約数ペア:

[(1, 20123961986), (2, 10061980993), (19, 1059155894), (38, 529577947), (223, 90241982), (446, 45120991), (571, 35243366), (1142, 17621683), (4159, 4838654), (4237, 4749578), (8318, 2419327), (8474, 2374789), (10849, 1854914), (21698, 927457), (79021, 254666), (127333, 158042)]