13307120

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{919}}^1$

素因数の和:1113

約数の個数: 40

約数和(自身を含む): 31143840

約数和(自身を除く): 17836720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 919, 1448, 1810, 1838, 2896, 3620, 3676, 4595, 7240, 7352, 9190, 14480, 14704, 18380, 36760, 73520, 166339, 332678, 665356, 831695, 1330712, 1663390, 2661424, 3326780, 6653560, 13307120]

約数ペア:

[(1, 13307120), (2, 6653560), (4, 3326780), (5, 2661424), (8, 1663390), (10, 1330712), (16, 831695), (20, 665356), (40, 332678), (80, 166339), (181, 73520), (362, 36760), (724, 18380), (905, 14704), (919, 14480), (1448, 9190), (1810, 7352), (1838, 7240), (2896, 4595), (3620, 3676)]