205419720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{155621}}^1$

素因数の和:155646

約数の個数: 64

約数和(自身を含む): 672287040

約数和(自身を除く): 466867320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 155621, 311242, 466863, 622484, 778105, 933726, 1244968, 1556210, 1711831, 1867452, 2334315, 3112420, 3423662, 3734904, 4668630, 5135493, 6224840, 6847324, 8559155, 9337260, 10270986, 13694648, 17118310, 18674520, 20541972, 25677465, 34236620, 41083944, 51354930, 68473240, 102709860, 205419720]

約数ペア:

[(1, 205419720), (2, 102709860), (3, 68473240), (4, 51354930), (5, 41083944), (6, 34236620), (8, 25677465), (10, 20541972), (11, 18674520), (12, 17118310), (15, 13694648), (20, 10270986), (22, 9337260), (24, 8559155), (30, 6847324), (33, 6224840), (40, 5135493), (44, 4668630), (55, 3734904), (60, 3423662), (66, 3112420), (88, 2334315), (110, 1867452), (120, 1711831), (132, 1556210), (165, 1244968), (220, 933726), (264, 778105), (330, 622484), (440, 466863), (660, 311242), (1320, 155621)]