129928760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{249863}}^1$

素因数の和:249887

約数の個数: 32

約数和(自身を含む): 314828640

約数和(自身を除く): 184899880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 249863, 499726, 999452, 1249315, 1998904, 2498630, 3248219, 4997260, 6496438, 9994520, 12992876, 16241095, 25985752, 32482190, 64964380, 129928760]

約数ペア:

[(1, 129928760), (2, 64964380), (4, 32482190), (5, 25985752), (8, 16241095), (10, 12992876), (13, 9994520), (20, 6496438), (26, 4997260), (40, 3248219), (52, 2498630), (65, 1998904), (104, 1249315), (130, 999452), (260, 499726), (520, 249863)]