13378480

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1879}}^1$

素因数の和:1981

約数の個数: 40

約数和(自身を含む): 31471200

約数和(自身を除く): 18092720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 1879, 3560, 3758, 7120, 7516, 9395, 15032, 18790, 30064, 37580, 75160, 150320, 167231, 334462, 668924, 836155, 1337848, 1672310, 2675696, 3344620, 6689240, 13378480]

約数ペア:

[(1, 13378480), (2, 6689240), (4, 3344620), (5, 2675696), (8, 1672310), (10, 1337848), (16, 836155), (20, 668924), (40, 334462), (80, 167231), (89, 150320), (178, 75160), (356, 37580), (445, 30064), (712, 18790), (890, 15032), (1424, 9395), (1780, 7516), (1879, 7120), (3560, 3758)]