28423460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109321}}^1$

素因数の和:109343

約数の個数: 24

約数和(自身を含む): 64281336

約数和(自身を除く): 35857876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 109321, 218642, 437284, 546605, 1093210, 1421173, 2186420, 2842346, 5684692, 7105865, 14211730, 28423460]

約数ペア:

[(1, 28423460), (2, 14211730), (4, 7105865), (5, 5684692), (10, 2842346), (13, 2186420), (20, 1421173), (26, 1093210), (52, 546605), (65, 437284), (130, 218642), (260, 109321)]