16867686940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{258469}}^1$

素因数の和:258742

約数の個数: 48

約数和(自身を含む): 38299050720

約数和(自身を除く): 21431363780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 251, 260, 502, 1004, 1255, 2510, 3263, 5020, 6526, 13052, 16315, 32630, 65260, 258469, 516938, 1033876, 1292345, 2584690, 3360097, 5169380, 6720194, 13440388, 16800485, 33600970, 64875719, 67201940, 129751438, 259502876, 324378595, 648757190, 843384347, 1297514380, 1686768694, 3373537388, 4216921735, 8433843470, 16867686940]

約数ペア:

[(1, 16867686940), (2, 8433843470), (4, 4216921735), (5, 3373537388), (10, 1686768694), (13, 1297514380), (20, 843384347), (26, 648757190), (52, 324378595), (65, 259502876), (130, 129751438), (251, 67201940), (260, 64875719), (502, 33600970), (1004, 16800485), (1255, 13440388), (2510, 6720194), (3263, 5169380), (5020, 3360097), (6526, 2584690), (13052, 1292345), (16315, 1033876), (32630, 516938), (65260, 258469)]