19641760

素因数分解:

$2^5\times 5^1\times {\mathrm{122761}}^1$

素因数の和:122776

約数の個数: 24

約数和(自身を含む): 46404036

約数和(自身を除く): 26762276

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 122761, 245522, 491044, 613805, 982088, 1227610, 1964176, 2455220, 3928352, 4910440, 9820880, 19641760]

約数ペア:

[(1, 19641760), (2, 9820880), (4, 4910440), (5, 3928352), (8, 2455220), (10, 1964176), (16, 1227610), (20, 982088), (32, 613805), (40, 491044), (80, 245522), (160, 122761)]