204513015

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{3919}}^1$

素因数の和:4012

約数の個数: 48

約数和(自身を含む): 386104320

約数和(自身を除く): 181591305

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 71, 105, 147, 213, 245, 355, 497, 735, 1065, 1491, 2485, 3479, 3919, 7455, 10437, 11757, 17395, 19595, 27433, 52185, 58785, 82299, 137165, 192031, 278249, 411495, 576093, 834747, 960155, 1391245, 1947743, 2880465, 4173735, 5843229, 9738715, 13634201, 29216145, 40902603, 68171005, 204513015]

約数ペア:

[(1, 204513015), (3, 68171005), (5, 40902603), (7, 29216145), (15, 13634201), (21, 9738715), (35, 5843229), (49, 4173735), (71, 2880465), (105, 1947743), (147, 1391245), (213, 960155), (245, 834747), (355, 576093), (497, 411495), (735, 278249), (1065, 192031), (1491, 137165), (2485, 82299), (3479, 58785), (3919, 52185), (7455, 27433), (10437, 19595), (11757, 17395)]