81177760

素因数分解:

$2^5\times 5^1\times {\mathrm{507361}}^1$

素因数の和:507376

約数の個数: 24

約数和(自身を含む): 191782836

約数和(自身を除く): 110605076

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 507361, 1014722, 2029444, 2536805, 4058888, 5073610, 8117776, 10147220, 16235552, 20294440, 40588880, 81177760]

約数ペア:

[(1, 81177760), (2, 40588880), (4, 20294440), (5, 16235552), (8, 10147220), (10, 8117776), (16, 5073610), (20, 4058888), (32, 2536805), (40, 2029444), (80, 1014722), (160, 507361)]