820137488

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1653503}}^1$

素因数の和:1653542

約数の個数: 20

約数和(自身を含む): 1640275968

約数和(自身を除く): 820138480

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1653503, 3307006, 6614012, 13228024, 26456048, 51258593, 102517186, 205034372, 410068744, 820137488]

約数ペア:

[(1, 820137488), (2, 410068744), (4, 205034372), (8, 102517186), (16, 51258593), (31, 26456048), (62, 13228024), (124, 6614012), (248, 3307006), (496, 1653503)]