689617072

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1390357}}^1$

素因数の和:1390396

約数の個数: 20

約数和(自身を含む): 1379235136

約数和(自身を除く): 689618064

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1390357, 2780714, 5561428, 11122856, 22245712, 43101067, 86202134, 172404268, 344808536, 689617072]

約数ペア:

[(1, 689617072), (2, 344808536), (4, 172404268), (8, 86202134), (16, 43101067), (31, 22245712), (62, 11122856), (124, 5561428), (248, 2780714), (496, 1390357)]