28810210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20147}}^1$

素因数の和:20178

約数の個数: 32

約数和(自身を含む): 60927552

約数和(自身を除く): 32117342

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 20147, 40294, 100735, 201470, 221617, 261911, 443234, 523822, 1108085, 1309555, 2216170, 2619110, 2881021, 5762042, 14405105, 28810210]

約数ペア:

[(1, 28810210), (2, 14405105), (5, 5762042), (10, 2881021), (11, 2619110), (13, 2216170), (22, 1309555), (26, 1108085), (55, 523822), (65, 443234), (110, 261911), (130, 221617), (143, 201470), (286, 100735), (715, 40294), (1430, 20147)]