202017560

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{7879}}^1$

素因数の和:8531

約数の個数: 32

約数和(自身を含む): 455306400

約数和(自身を除く): 253288840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 7879, 12820, 15758, 25640, 31516, 39395, 63032, 78790, 157580, 315160, 5050439, 10100878, 20201756, 25252195, 40403512, 50504390, 101008780, 202017560]

約数ペア:

[(1, 202017560), (2, 101008780), (4, 50504390), (5, 40403512), (8, 25252195), (10, 20201756), (20, 10100878), (40, 5050439), (641, 315160), (1282, 157580), (2564, 78790), (3205, 63032), (5128, 39395), (6410, 31516), (7879, 25640), (12820, 15758)]