20461792

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{487}}^1$

素因数の和:611

約数の個数: 48

約数和(自身を含む): 43902432

約数和(自身を除く): 23440640

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 101, 104, 202, 208, 404, 416, 487, 808, 974, 1313, 1616, 1948, 2626, 3232, 3896, 5252, 6331, 7792, 10504, 12662, 15584, 21008, 25324, 42016, 49187, 50648, 98374, 101296, 196748, 202592, 393496, 639431, 786992, 1278862, 1573984, 2557724, 5115448, 10230896, 20461792]

約数ペア:

[(1, 20461792), (2, 10230896), (4, 5115448), (8, 2557724), (13, 1573984), (16, 1278862), (26, 786992), (32, 639431), (52, 393496), (101, 202592), (104, 196748), (202, 101296), (208, 98374), (404, 50648), (416, 49187), (487, 42016), (808, 25324), (974, 21008), (1313, 15584), (1616, 12662), (1948, 10504), (2626, 7792), (3232, 6331), (3896, 5252)]