1340870128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{339289}}^1$

素因数の和:339329

約数の個数: 40

約数和(自身を含む): 2945037200

約数和(自身を除く): 1604167072

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 339289, 678578, 1357156, 2714312, 4410757, 5428624, 6446491, 8821514, 12892982, 17643028, 25785964, 35286056, 51571928, 70572112, 83804383, 103143856, 167608766, 335217532, 670435064, 1340870128]

約数ペア:

[(1, 1340870128), (2, 670435064), (4, 335217532), (8, 167608766), (13, 103143856), (16, 83804383), (19, 70572112), (26, 51571928), (38, 35286056), (52, 25785964), (76, 17643028), (104, 12892982), (152, 8821514), (208, 6446491), (247, 5428624), (304, 4410757), (494, 2714312), (988, 1357156), (1976, 678578), (3952, 339289)]