81483220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44771}}^1$

素因数の和:44800

約数の個数: 48

約数和(自身を含む): 210607488

約数和(自身を除く): 129124268

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44771, 89542, 179084, 223855, 313397, 447710, 582023, 626794, 895420, 1164046, 1253588, 1566985, 2328092, 2910115, 3133970, 4074161, 5820230, 6267940, 8148322, 11640460, 16296644, 20370805, 40741610, 81483220]

約数ペア:

[(1, 81483220), (2, 40741610), (4, 20370805), (5, 16296644), (7, 11640460), (10, 8148322), (13, 6267940), (14, 5820230), (20, 4074161), (26, 3133970), (28, 2910115), (35, 2328092), (52, 1566985), (65, 1253588), (70, 1164046), (91, 895420), (130, 626794), (140, 582023), (182, 447710), (260, 313397), (364, 223855), (455, 179084), (910, 89542), (1820, 44771)]