80951720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87991}}^1$

素因数の和:88025

約数の個数: 32

約数和(自身を含む): 190062720

約数和(自身を除く): 109111000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 87991, 175982, 351964, 439955, 703928, 879910, 1759820, 2023793, 3519640, 4047586, 8095172, 10118965, 16190344, 20237930, 40475860, 80951720]

約数ペア:

[(1, 80951720), (2, 40475860), (4, 20237930), (5, 16190344), (8, 10118965), (10, 8095172), (20, 4047586), (23, 3519640), (40, 2023793), (46, 1759820), (92, 879910), (115, 703928), (184, 439955), (230, 351964), (460, 175982), (920, 87991)]