256994608

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{65029}}^1$

素因数の和:65069

約数の個数: 40

約数和(自身を含む): 564460400

約数和(自身を除く): 307465792

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 65029, 130058, 260116, 520232, 845377, 1040464, 1235551, 1690754, 2471102, 3381508, 4942204, 6763016, 9884408, 13526032, 16062163, 19768816, 32124326, 64248652, 128497304, 256994608]

約数ペア:

[(1, 256994608), (2, 128497304), (4, 64248652), (8, 32124326), (13, 19768816), (16, 16062163), (19, 13526032), (26, 9884408), (38, 6763016), (52, 4942204), (76, 3381508), (104, 2471102), (152, 1690754), (208, 1235551), (247, 1040464), (304, 845377), (494, 520232), (988, 260116), (1976, 130058), (3952, 65029)]