16540220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{877}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 37171008

約数和(自身を除く): 20630788

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 877, 943, 1754, 1886, 3508, 3772, 4385, 4715, 8770, 9430, 17540, 18860, 20171, 35957, 40342, 71914, 80684, 100855, 143828, 179785, 201710, 359570, 403420, 719140, 827011, 1654022, 3308044, 4135055, 8270110, 16540220]

約数ペア:

[(1, 16540220), (2, 8270110), (4, 4135055), (5, 3308044), (10, 1654022), (20, 827011), (23, 719140), (41, 403420), (46, 359570), (82, 201710), (92, 179785), (115, 143828), (164, 100855), (205, 80684), (230, 71914), (410, 40342), (460, 35957), (820, 20171), (877, 18860), (943, 17540), (1754, 9430), (1886, 8770), (3508, 4715), (3772, 4385)]