4140760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7963}}^1$

素因数の和:7987

約数の個数: 32

約数和(自身を含む): 10034640

約数和(自身を除く): 5893880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 7963, 15926, 31852, 39815, 63704, 79630, 103519, 159260, 207038, 318520, 414076, 517595, 828152, 1035190, 2070380, 4140760]

約数ペア:

[(1, 4140760), (2, 2070380), (4, 1035190), (5, 828152), (8, 517595), (10, 414076), (13, 318520), (20, 207038), (26, 159260), (40, 103519), (52, 79630), (65, 63704), (104, 39815), (130, 31852), (260, 15926), (520, 7963)]