80807480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155399}}^1$

素因数の和:155423

約数の個数: 32

約数和(自身を含む): 195804000

約数和(自身を除く): 114996520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 155399, 310798, 621596, 776995, 1243192, 1553990, 2020187, 3107980, 4040374, 6215960, 8080748, 10100935, 16161496, 20201870, 40403740, 80807480]

約数ペア:

[(1, 80807480), (2, 40403740), (4, 20201870), (5, 16161496), (8, 10100935), (10, 8080748), (13, 6215960), (20, 4040374), (26, 3107980), (40, 2020187), (52, 1553990), (65, 1243192), (104, 776995), (130, 621596), (260, 310798), (520, 155399)]