205295480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{3833}}^1$

素因数の和:3960

約数の個数: 64

約数和(自身を含む): 502407360

約数和(自身を除く): 297111880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 103, 104, 130, 206, 260, 412, 515, 520, 824, 1030, 1339, 2060, 2678, 3833, 4120, 5356, 6695, 7666, 10712, 13390, 15332, 19165, 26780, 30664, 38330, 49829, 53560, 76660, 99658, 153320, 199316, 249145, 394799, 398632, 498290, 789598, 996580, 1579196, 1973995, 1993160, 3158392, 3947990, 5132387, 7895980, 10264774, 15791960, 20529548, 25661935, 41059096, 51323870, 102647740, 205295480]

約数ペア:

[(1, 205295480), (2, 102647740), (4, 51323870), (5, 41059096), (8, 25661935), (10, 20529548), (13, 15791960), (20, 10264774), (26, 7895980), (40, 5132387), (52, 3947990), (65, 3158392), (103, 1993160), (104, 1973995), (130, 1579196), (206, 996580), (260, 789598), (412, 498290), (515, 398632), (520, 394799), (824, 249145), (1030, 199316), (1339, 153320), (2060, 99658), (2678, 76660), (3833, 53560), (4120, 49829), (5356, 38330), (6695, 30664), (7666, 26780), (10712, 19165), (13390, 15332)]