8143460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31321}}^1$

素因数の和:31343

約数の個数: 24

約数和(自身を含む): 18417336

約数和(自身を除く): 10273876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31321, 62642, 125284, 156605, 313210, 407173, 626420, 814346, 1628692, 2035865, 4071730, 8143460]

約数ペア:

[(1, 8143460), (2, 4071730), (4, 2035865), (5, 1628692), (10, 814346), (13, 626420), (20, 407173), (26, 313210), (52, 156605), (65, 125284), (130, 62642), (260, 31321)]