81455460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19121}}^1$

素因数の和:19204

約数の個数: 48

約数和(自身を含む): 231299712

約数和(自身を除く): 149844252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 19121, 38242, 57363, 76484, 95605, 114726, 191210, 229452, 286815, 382420, 573630, 1147260, 1357591, 2715182, 4072773, 5430364, 6787955, 8145546, 13575910, 16291092, 20363865, 27151820, 40727730, 81455460]

約数ペア:

[(1, 81455460), (2, 40727730), (3, 27151820), (4, 20363865), (5, 16291092), (6, 13575910), (10, 8145546), (12, 6787955), (15, 5430364), (20, 4072773), (30, 2715182), (60, 1357591), (71, 1147260), (142, 573630), (213, 382420), (284, 286815), (355, 229452), (426, 191210), (710, 114726), (852, 95605), (1065, 76484), (1420, 57363), (2130, 38242), (4260, 19121)]