722736040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1389877}}^1$

素因数の和:1389901

約数の個数: 32

約数和(自身を含む): 1751246280

約数和(自身を除く): 1028510240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1389877, 2779754, 5559508, 6949385, 11119016, 13898770, 18068401, 27797540, 36136802, 55595080, 72273604, 90342005, 144547208, 180684010, 361368020, 722736040]

約数ペア:

[(1, 722736040), (2, 361368020), (4, 180684010), (5, 144547208), (8, 90342005), (10, 72273604), (13, 55595080), (20, 36136802), (26, 27797540), (40, 18068401), (52, 13898770), (65, 11119016), (104, 6949385), (130, 5559508), (260, 2779754), (520, 1389877)]