129312560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124339}}^1$

素因数の和:124365

約数の個数: 40

約数和(自身を含む): 323781360

約数和(自身を除く): 194468800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 124339, 248678, 497356, 621695, 994712, 1243390, 1616407, 1989424, 2486780, 3232814, 4973560, 6465628, 8082035, 9947120, 12931256, 16164070, 25862512, 32328140, 64656280, 129312560]

約数ペア:

[(1, 129312560), (2, 64656280), (4, 32328140), (5, 25862512), (8, 16164070), (10, 12931256), (13, 9947120), (16, 8082035), (20, 6465628), (26, 4973560), (40, 3232814), (52, 2486780), (65, 1989424), (80, 1616407), (104, 1243390), (130, 994712), (208, 621695), (260, 497356), (520, 248678), (1040, 124339)]