20189798825

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{10267}}^1$

素因数の和:10962

約数の個数: 48

約数和(自身を含む): 30343665024

約数和(自身を除く): 10153866199

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 661, 2975, 3305, 4627, 10267, 11237, 16525, 23135, 51335, 56185, 71869, 78659, 115675, 174539, 256675, 280925, 359345, 393295, 872695, 1221773, 1796725, 1966475, 4363475, 6108865, 6786487, 30544325, 33932435, 47505409, 115370279, 169662175, 237527045, 576851395, 807591953, 1187635225, 2884256975, 4037959765, 20189798825]

約数ペア:

[(1, 20189798825), (5, 4037959765), (7, 2884256975), (17, 1187635225), (25, 807591953), (35, 576851395), (85, 237527045), (119, 169662175), (175, 115370279), (425, 47505409), (595, 33932435), (661, 30544325), (2975, 6786487), (3305, 6108865), (4627, 4363475), (10267, 1966475), (11237, 1796725), (16525, 1221773), (23135, 872695), (51335, 393295), (56185, 359345), (71869, 280925), (78659, 256675), (115675, 174539)]